Leaking Cartridge Filter

by Doug
(Melbourne, Australia)

It appears my cartridge housing leaks. It does not leak until pump is going. The leak is not visual from the lid or inlet /outlet piping.


Could too much chemical use cause corrosion on the cartridge floor as the water seems to be coming from underneath?




Thanks for the question Doug

Cartridge filters have a belly band clamp with a large. This separates the two halves.

The center O-ring can get worn down and cracked. If this is the case you'll need to replace the O-ring. Most can be found at your local pool store for minimal cost.

Be sure to release any air in the systme and turn the pump motor off before doing any kind of repairs. I'd suggest turning off the breaker box as well.

You can also exprience some draining at the bottom drain. If the drain is cracked it will need to be replaced. You can use Teflon plumbers tape or if you particular drain has an O-ring, about the size as big around as a pencil, simply replace the smaller O-ring.

You can also use a great product called Aladdin Magic Lube 5 oz. Teflon Based Lube or something similar. Spread than evenly around the O-rings and re-secure the two havles. NEVER used a petroleum based lube such as Vaseline. It will eventually ruin the O-ring. Use lubes specifically designed for filter repair and swimming pools.

It's hard to determine whether the water chemistry is the cause of the issue.

If you're concerned about that, I'd like to have your complete chemical readings:

Chlorine, CYA (cyanuric acid/stabilizer), pH, Alkalinity, Calcium Hardness, and Metals (iron and copper) and names of any algaecides you may have used along with clarifiers, phosphate removers, and/or flocs. It makes troubleshooting much easier.

To post a reply, or if you have a similar question, you can see your post on the Q&A page in the "Cartridge Filter" category.

Check back to this post for updates or answers.

If you need immediate assistance (within 24 hrs) or for emergency personal assistance, you can make a donation of your choice and I'll answer your questions by phone.

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Hope this helps and have a great Summer.

Robert

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How Can I stop My Cartridge Filter From Leaking?

by Anne
(Ballston Spa, NY)

I have a high efficiency SPARCO cartridge filter system. It is nearly 10 years old and has worked fine up until this year when I opened my pool and notice leaks at two spots both 180 degrees from each other.

I have replaced the o-ring on the cap each time and it still leaks. I was finally able to get the leak down to a drops and noticed as I run the motor on low setting it stopped but when I switched the pump motor to the higher setting, the filter leakes likes a sieve at the same two spots. I have cleaned the filter and the pressure is measuring less than 8 psi when operating.

Can you help?

I have tried extra silicon around the gasket. My pool guy seems to think the filter housing is distorted.

How is it then possible for the filter to not leak on the low motor setting and leak on the high setting?




Thanks for the question Anne

Frist I'd start with the lid o-ring. You can sometimes take it out, clean it, flip it over, and reuse it. If this doesn't solve your problem, it's probably time to get a new one.

Next is the actual lid. They're made to last a long time, but can be mishandled or tighten too much which can cause them to crack. Even the smallest hairline crack can cause them to leak.

Inspect the stress areas carefully for hairline cracks. These might be the source of the leak.

The tank can also have cracks in it. If this is the case the only remedy is to replace it.

You really only have 3 areas to look over - the o-ring, the lid, and the top of the tank. If there are cracks anywhere, you'll need to replace that part. They're not meant to leak under normal conditions, but there has to be an opening or crack somewhere.

Be sure to tighten the lid properly. Sometimes pool owners can get the lid crooked while tightening them. This will cause a leak as well.
Don't crank down on the lid. This will cause the o-ring to flaten out. Tighter is not better. Snug is fine.

if you have a dual-power motor the pressure can buid up causing the top to leak.

To post a reply, or if you have a similar question, you can see your post on the Q&A page in the "Cartrige Filters" category.

Check back to this post for updates or answers.

If you need immediate assistance (within 24 hrs) or for emergency personal assistance, you can make a donation of your choice and I'll answer your questions by phone.

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Hope this helps and have a great Summer.

Robert

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Does Not Cleaning The Cartridge Filter Often Cause Failure In The Pump Housing?

When I am away for several months I have a pool company take care of my pool in Florida. My filter was in good shape in June, it is now July and they say I need a new filter and my pump housing is leaking.

They dislike cleaning the filter as it takes more than the 4 minutes they spend cleaning so could this affect the pump housing.

This is rainy season in Florida and when there I have to clean the filter at least every 2-3 weeks.

Thanks for your help.




Thanks for the question

You really struck a nerve with me when you wrote "they dislike". I absolutely positively don't care what they like or don't like. That's not my problem. You're the customer and should have the service you pay for. They're the pools guys and should be doing their job. End of story. Period. If they "dislike it" they need to find a new job and stop stealing money from you.

I had a route of nearly 50 pools in Arizona. It wasn't my favorite thing to take 4 - 5 hours to vacuum and clean a pool after one of Arizona's massive windstorms and when it's 115 degrees, but I did it because that's what my customers expected; a clean pool. Tell you pool guy to grow a pair and either do the job right or get out. Pool services in Florida and Arizona are a dime a dozen. If they don't do the job right, get someone else. I'm sure there are 20 other real pool guys lined up for your business.

Enough of my ranting.

Yes, a dirty cartridge can affect the pump housing. When water can't circulate properly the excess strain puts a large amount of work on the motor and can cause the bearings to go out and even melt the plumbing if it gets hot enough. The diffuser, gaskets, and impeller are also at risk of damage. If not enough water is being pushed through the pump is running dry. Perhaps not completely dry, but it can cause damage none the less.

I would certainly bring this up to them and get everything in writing of what they did or didn't do, and get pictures.

To post a reply, or if you have a similar question, you can see your post on the Q&A page in the "Cartridge Filters" category.

Check back to this post for updates or answers.

If you feel your situation is more complex and want immediate assistance (within 24 hrs) you can make a donation of $35 per hour and I'll answer your questions by phone.

Have I helped you find a solution to your pool problems? Did this information help you? Please consider making a donation to help keep this site going. Thank you.









Hope this helps and have a great Summer.

Robert

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Cartdrige Filter/Pump

by Christal
(Jackson MI)

I have a above ground pool it's 16 in round and 4 feet deep. I have a sand filter hooked to a cartdrige/filter pump that came with it..

I need to know if I should leave the cartdrige filter in it along with the sand filter? Or should I take the cartdrige out?

The reason I'm asking is that my dad took the cartdrige out and now the sand is blowing into the pool. It didn't do that last year when the cartdrige was in it..

I'm trying to figure out why the sand is going into the pool.




Thanks for the question Christal

I am unsure as to the nature of the question. It sounds as if you have a cartridge filter with a sand filter. Is that correct?

Also, what it meant by you have a sand filter hooked to a cartridge filter/pump. The pump motors are interchangeable with filter systems. The same 1HP pump will work for a sand cartridge, or DE filter.

If what your dad did didn't work then I'd recommend doing the same thing you did last year so the sand isn't going back into the pool.

Do you have a sand filter? If so then there's a good chance that there's a broken lateral. Which kind of filter do you have because I've never heard of a cartridge filter in a sand filter.

If you could be a bit more clear I could better answer your question.

To post a reply, or if you have a similar question, you can see your post on the Q&A page in the "Cartridge Filters" category.

Check back to this post for updates or answers.

If you feel your situation is more complex and want immediate assistance (within 24 hrs) you can make a donation of your choice and I'll answer your questions by phone.

Have I helped you find a solution to your pool problems? Did this information help you? Please consider making a donation to help keep this site going. Thank you.









Have a great Summer.

Robert

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