San Diego, San Diego County, California
Drain Cleaning San Diego: the Public Side Cut Its Failures by Ninety Per Cent in Twenty Years, and the Private Side Did Not
In the year 2000 the City of San Diego recorded 365 sewer spills. An average of one for every day of the year, in a city whose beaches and bays are the reason a great many people live there.
By 2010 the figure was 41. By 2020 it was 36. That is roughly a ninety per cent reduction on the same collection system, and the city publishes the whole record itself, by year, by cause and by month, which is an unusual amount of self-measurement for a municipal utility.
The interesting part for anybody with a drain is not the achievement. It is that the city says plainly what caused the failures, and the two things it names are exactly the two things that block private laterals. The problem was solved on one side of the property line and left untouched on the other.
This page sets out what actually changed, what it cost, which parts of it transfer to a house and which do not, and the one instruction where this city and Phoenix flatly contradict each other about something as small as a frying pan.
Request Service in San DiegoPlumber San Diego: The Main City Page
Three Thousand Miles, Some of It a Hundred Years Old, and a Decision Made in 2007
The city is unusually candid about why it was spilling sewage once a day. It states that the increase in the late 1990s and early 2000s was due in large part to aging sewer infrastructure which needed replacement, repair and upgrades, and adds that some pipelines had been in operation for a hundred years.
Then it names the decision that changed it. Beginning in 2007, sewer rates were increased to operate, maintain, repair and upgrade the wastewater system, and the city states those increases are paying for more than 585 million dollars of necessary upgrades, covering replacement of sewer mains, pipeline rehabilitation and pump station improvements.
Alongside the money went a change of pace. The rate of replacement and rehabilitation of sewer pipelines rose from 15 to 45 miles a year, a tripling, and the city states that the entire 3,000 mile system is now under an aggressive cleaning programme.
Fifteen miles a year on a three thousand mile system is a two hundred year replacement cycle. Forty five miles a year is a sixty seven year cycle. Neither is fast, but the difference between them is the difference between a system that is decaying and one that is roughly keeping up, and the spill record moved accordingly.
The city attributes the result to both halves. System improvements, it says, as well as increased sewer line cleaning, have made a big difference. Not one intervention. Capital works and maintenance frequency together, sustained across two decades.
That is the whole finding, and it is worth sitting with before reading anything else on this page. The failure mode was not mysterious, the fix was not clever, and it worked. It took money, a schedule and twenty years.
Five Things That Changed on the Public Side, Sorted by Whether They Transfer to a House
This grid sorts by transferability. Not by cost, not by importance, and deliberately not by what the city does that you do not, which is a comparison this site has already made about another city and which would be a lazy second use here. The question is narrower and more useful: of the things that actually worked at scale, which ones scale down.
Replacing old pipe, faster
Does not transfer. A tripling from 15 to 45 miles a year is a capital programme funded by a rate decision. A household has one lateral and replaces it once, and no schedule exists that makes that cheaper.
Cleaning the whole system on a cycle
Transfers, in principle. The city moved from cleaning where trouble appeared to cleaning everything. The private equivalent is an interval rather than an event, and it is the single most copyable thing on this list.
Attacking the causes at source
Transfers completely. The city names roots and cooking grease as the leading causes of public spills, and states they are also the leading causes of lateral spills on private property. Same two enemies, same two habits.
Measuring, publicly, by cause
Transfers oddly well. The city publishes spills by year, by cause, by month and year against year. The household version is knowing which fixture went first and whether it cleared and came back, which is a record almost nobody keeps.
Paying for it before it broke
Transfers, uncomfortably. The 2007 rate decision was a choice to spend ahead of failure. That is the same argument as surveying a line that is slowing rather than waiting for it to stop, and it is equally unpopular.
Two of the five are pure capital and do not scale down. Three do, and the third one is the strongest, because it comes with the city’s own statement that the private side is failing for the same two reasons the public side was. That is not an analogy. It is the same list of causes. Where a line has already failed structurally it becomes a sewer line repair question rather than a cleaning one.
A Disagreement Worth Printing
Two Big Cities, Two Different Answers About the Same Frying Pan
This site has now read the household grease guidance of two large Sun Belt cities in the same week, and they do not agree. Not about the science, which is identical, but about what they are asking a household to actually do.
San Diego says to pour small amounts of cooking oil, and it names salad dressing, frying oil and bacon fat, into an old milk carton, a frozen juice container or another non-recyclable package, and dispose of that in the garbage. Phoenix says to let the grease cool in the cookware that was used and scrape it into the bin, which our Phoenix drain cleaning page covers.
One asks you to acquire and store a container. The other asks you to do nothing you were not already doing. That is a meaningful difference in a behaviour that only works if it happens every time, and it is the kind of detail that decides whether public health advice survives contact with a Tuesday evening.
We are recording the difference rather than picking a winner, because both are official and neither city was asked to comment. If you are in San Diego, the city’s own words are the milk carton. If the container is what stops you doing it at all, the neighbouring city’s method removes the obstacle and lands the fat in the same bin.
San Diego adds two things Phoenix does not. Wipe greasy dishes and pots with a disposable towel before washing them or loading the dishwasher. And, bluntly, home garbage disposals do not keep grease out of the plumbing system.
A Route Nobody Uses
The City Will Take Your Cooking Oil, Free, Up to Thirty Gallons
Tucked at the bottom of the city’s spill prevention material is something more useful than most of the advice above it, and almost nobody appears to know about it.
City of San Diego residents can recycle cooking oil and grease at the Miramar Recycling Centre, where the city states it is primarily recycled into biofuel. A cooking oil recycling bin is available, taking up to thirty gallons, and the city states there is no charge for the service.
Thirty gallons is not a household quantity. It is a quantity for somebody who has been collecting for a long time, or for a household that fries seriously, or for the aftermath of an event. The limit is set high enough that the awkward cases are covered rather than only the easy ones.
There is one exclusion and it is stated flatly. The service is not open to commercial food preparation businesses. Those premises sit inside a separate permitting regime with its own equipment requirements and its own inspectors, which is a different subject and belongs on a commercial page rather than here.
For a household the practical point is small and real. The reason people pour fat down a sink is almost never ignorance. It is that the alternative involved a container, a smell and a bin. A free drop-off with a thirty gallon ceiling removes the last of those objections for anybody willing to keep a sealed tub in a garage.
The Public System and Your Lateral, on What Actually Changed
Both columns are drawn from what the City of San Diego publishes about itself. The point is not that the city is doing something a household should feel bad about. It is that the city ran a twenty year experiment, published the result, and the result is directly relevant to a pipe it has no responsibility for.
| The public collection system | A private lateral | |
|---|---|---|
| Size | Roughly 3,000 miles, some of it a hundred years old | Tens of feet, and on a canyon rim considerably more |
| Failures in 2000 | 365 spills, an average of one a day | Not measured, then or now |
| Failures in 2020 | 36 | Still not measured |
| What was spent | More than 585 million dollars of upgrades, funded by a 2007 rate decision | Whatever the last emergency cost, usually unplanned |
| Replacement rate | Lifted from 15 to 45 miles a year | Once, at the end, and usually in a hurry |
| Leading causes | Roots and cooking grease | Roots and cooking grease, which the city states explicitly |
The last row is the one that matters and it is the city’s own sentence rather than our inference. It states that the leading causes of public sewer spills, roots and cooking grease, are also the leading causes of lateral spills on private properties. Same two enemies on both sides of a connection, and only one side ran a programme against them.
A Warning About the Map
Fourteen Ways People Search for This, and Several of Them Are the Wrong Jurisdiction
An unusual number of people looking for this service in this region type the county rather than the city. That is worth taking seriously rather than treating as a synonym, because the two are genuinely different things and the difference decides which of the figures on this page applies to you.
Everything measured above belongs to the City of San Diego. The 365 spills, the 36, the 3,000 miles, the 585 million dollars, the change from 15 to 45 miles a year, the Miramar drop-off and the grease instruction are all city figures for the city system.
San Diego County contains a large number of separately incorporated cities running their own collection systems, plus unincorporated areas on county and district arrangements. Chula Vista and El Cajon are separate authorities publishing their own material, and none of these numbers describes either of them.
What does travel is the physics and the two causes. Grease cools and hardens in any pipe in any jurisdiction, roots find water through any joint, and both are the leading causes on either side of any property line. If you take only the habit and the planting check away from this page, you have taken the part that works anywhere.
For the supply story, the mesas and canyons and the permit routes, the main San Diego page covers that ground. For the wider region see our California service areas.
Drain Cleaning in San Diego, Answered From the City’s Own Spill Record
How a city cut its sewer spills by ninety per cent in twenty years, which parts of that a household can copy, and the free thirty gallon route almost nobody uses.
Largely, on the city’s own evidence. It names roots and cooking grease as the leading causes of public sewer spills and states that they are also the leading causes of lateral spills on private properties. The city then reduced its own spill count from 365 in the year 2000 to 36 in 2020, attributing the change to system improvements together with increased sewer line cleaning. The causes are known, the counter-measures are known, and they were demonstrated at scale on the other side of the same connection.
Money and pace, sustained over twenty years. Beginning in 2007 sewer rates were increased to operate, maintain, repair and upgrade the wastewater system, and the city states those increases are paying for more than 585 million dollars of upgrades including main replacement, pipeline rehabilitation and pump station improvements. The rate of replacement and rehabilitation rose from 15 to 45 miles a year, and the city states the entire 3,000 mile system is now under an aggressive cleaning programme.
The city’s instruction is to pour small amounts of cooking oil, and it names salad dressing, frying oil and bacon fat, into an old milk carton, a frozen juice container or another non-recyclable package, and put that in the garbage. It also says to wipe greasy dishes and pots with a disposable towel before washing or loading the dishwasher, to put strainers in sink drains for food scraps, and states plainly that home garbage disposals do not keep grease out of the plumbing system.
Yes, and hardly anybody does. City of San Diego residents can recycle cooking oil and grease at the Miramar Recycling Centre, where the city states it is primarily recycled into biofuel. A cooking oil recycling bin is available taking up to thirty gallons, and the city states there is no charge for the service. It is not open to commercial food preparation businesses, which sit inside a separate permitting regime with its own equipment requirements.
Because the two cities made different judgements about what a household will actually do, not because they disagree about the chemistry. Phoenix says to let the grease cool in the cookware and scrape it into the bin, requiring no container at all. San Diego asks for a milk carton or a juice container. We are printing both rather than picking one. If the container is the reason the habit never sticks, the neighbouring city’s method puts the same fat in the same bin.
The city publishes no interval for private lines, and anybody quoting one as though it were official is guessing. What it does publish is that its own 3,000 mile system is under an aggressive cleaning programme rather than being cleaned where trouble appears, and that its replacement and rehabilitation rate runs at 45 miles a year. The transferable idea is an interval rather than an event, particularly on an older line or one with mature planting along the run.
The two causes do. The programme does not. Everything measured on this page belongs to the City of San Diego and its own collection system. The county contains many separately incorporated cities running their own systems and publishing their own material, plus unincorporated and district served areas on different arrangements again. A San Diego postal address does not settle which of those you are in, and the reliable test is the name on the wastewater bill.
Probably not, and the city’s own history is the argument against it. San Diego did not get from 365 spills to 36 by clearing the same blockages more often. It replaced pipe, three times faster than before, and cleaned the rest on a cycle. A line that blocks, clears and blocks again in the same spot is reporting something about its condition rather than its contents, and at that point the honest next step is a look inside rather than another clearance.
Sources, and What We Deliberately Left Out
The spill counts for 2000, 2010 and 2020, the statement that some pipelines had been in operation for a hundred years, the 2007 rate decision, the figure of more than 585 million dollars of upgrades and the attribution of the reduction to system improvements together with increased cleaning are from the City of San Diego Public Utilities Department sewer spill statistics page, which also publishes spills by year, by cause, by month and year against year.
The grease disposal instructions, the disposable towel and strainer advice, the statement that home garbage disposals do not keep grease out of the plumbing system, the planting advice, the naming of roots and cooking grease as the leading causes on both public and private sides, and the Miramar Recycling Centre cooking oil route with its thirty gallon limit and its commercial exclusion are from the same department’s preventing sewer spills material. The three thousand mile system size and the change in replacement rate from 15 to 45 miles a year are published by the same department.
No source disagreement was found within the city’s own material. One disagreement BETWEEN cities is printed above rather than resolved, which is the grease disposal instruction, and neither city was contacted to ask which they consider better.
No rate, fee or price is quoted for any service. That is worth stating plainly on this page in particular, because a striking share of the search demand behind it carries an explicit price or discount modifier, including a specific remembered offer. This site does not publish prices and this page does not answer that modifier.
Deliberately not covered here, because other pages already own them properly. The comparison of grease to cholesterol blocking arteries, which San Diego reaches for as well and which our Phoenix drain cleaning page printed first. The annual high pressure flush through a cleanout, which our San Diego emergency plumbing page owns along with the sewer lateral policy, the containment sequence and the fact that this city does not require property line cleanouts.
Also left out: the economics of a camera survey against repeated cabling, the behaviour of clay on the drain side in older neighbourhoods and the canyon-rim lateral, all of which the main San Diego page owns. The list of things that should not be flushed, which several city pages on this site already carry in full. Commercial grease regulation, which belongs to a commercial page and to inspectors rather than to a household. Bill adjustments for water loss, which our San Diego leak detection page owns.
For the work itself see drain cleaning, hydro jetting and sewer line repair, our guide to unclogging a drain without chemicals, or get in touch.
No office, address, crew or response time of ours is stated for San Diego, and we are not claiming to be based in this city.
Everything above was read from City of San Diego published pages at the time of writing. Spill counts, programme figures, capital totals, drop-off arrangements and departmental responsibilities all change. Nothing here is a quotation of record, a legal opinion, or a substitute for asking the body that holds the pen.