Air Through The Returns On Recirculate

by Guido

I have my pool on recirculation and have noticed a pulsing or air / water coming out of the closest jet to the pool house.

Does this mean there is air getting into the suction side / pump?

Thanks for the question Guido

Run a bead of silicon around the inlet fitting where it enters the outside of the pump. If there's a leak sealant should stop it. This is the intake port. The only thing you can do is to remove the threaded fitting, replace it with a sealant and screw it back into the pump.

Pump lid O-ring. Check for cracks. If it's broken replace it and lightly lube so it tightens smoothly

If there's air in the pump housing and air is continuously coming out of the returns, it's most likely a suction side air leak

If you get air in the pump no matter where you have the valves, it's probably between the valves and pump

Check the skimmers and clean debris out. Keep the water level between 1/3 - 1/2 up from the skimmer.

Gate Valves - Gate valves often suck in air around the shaft of the valve. You can try to tighten down the packing nut. The long term solution is to repack the valve or replace it with a Jandy.

Jandy Valves - With Jandy valves, there is a cap O-ring and shaft O-ring that can suck in air. The Jandy "Space Saver" valves leak. Some pool guys install these because they're easier but I've found they will fail in the long run.

Pipe Fittings - Improperly glued pipe fittings and old glue can leak Leaks can also develop in ten year old glue joints. Look for water leaking in the simple test described earlier.

Drain plug on the pump can sometimes fail


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Tiny Bubbles In Swimming Pool

by Wanda
(Dresden, TN USA)

Tiny bubbles are forming around the sides of the pool and the steps. It is an above ground pool. Round pool. 41/2' deep 30'across.

We use chlorine. Our test shows chlorine and pH are at the right levels.

What could be the problem?

Thanks for the question Wanda

Do you have a salt water chlorine generator? A SWG produces hydrogen gas bubbles and chlorine gas bubbles. This turns into hypochlorous acid and happens when the salt cell is running.

I know exactly what you're talking about. I've seen this before.

It could also be that there's a suction side leak. Things to look for are:

- Low water level. Keep it 1/3 - 1/2 up from the bottom of the skimmer

- Loose pump basket lid or bad o-ring

- Loose pump drain plug (near the bottom)

- Hole or crack in the suction side plumbing

- Crack in the filter, the filter lid, bad/worn o-ring on the lid or bleeder valve

I'd like to have your complete chemical readings:

Chlorine, CYA (cyanuric acid/stabilizer), pH, Alkalinity, Calcium Hardness, and Metals (iron and copper). You can get this done at your local pool store. It could be that something is off and a slight correction needs to be made to take care of the issue.

To post a reply, or if you have a similar question, you can see your post on the Q&A page in the "General Comments & Questions".

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.


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My Son Made Our Pool A Giant Bubble Bath-Please Help

by Aileen

I'm wondering if the advise i got is correct and also if there is an alrenative method where i can use something i already have in my kitchen cupboard ...such as apple cidar vinegar or baking soda or even anti-foam for a rug dr machine which i will never use (cuz dont like their machines)any and all hints or solutions would be GREATLY appreciated.

This is isnt the first time my autistic son has done this and probly wont be the last.however with the water rationing going on i hate to use the metod i did the last 2 times which is empty the pool and start over.



Thanks for the question Aileen

I will assume that your son dumped dish soap or bubble bath into the pool. The question doesn't give the details about that. There are a few ways you can go. First is to do a partial drain and refill. It's also important to scoop out as much foam as you can.

Next is to shock the pool 2 - 3 times. The question doesn't give the details on the size but it's 1 gallon of pool chlorine per 10k gallons. This will help break down the soap. You can also use products called Foam Down or an enzyme from Natural Chemistry. They have some products designed for this issue.

It's best to have layers of protection. If possible have an alarm on the door going to the pool. A pool gate with an alarm is also a good idea. You can also hide or lock up any soaps or detergents that may cause this in the future.

If you feel your situation is more complex than this, I do phone consultations for a donation of your choice. It makes things go much faster and many people have found it extremely beneficial, saving them time and money in the long run. All your questions will be answered. I have nothing to sell you so you know I'm not bias.

Pool Consultation

Hope this helps and have a great Summer.


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Air Leak On Suction Side of Inground Pool

by Ken

I have replaced pot lid gasket, drain plugs & do not have any visible air in the pot. I have a small water leak from pump & lots of air bubbles in discharge at pool jets. Also split pump housing & greased o-ring. Is it possible that the pump housing could be cracked & if so I will hose-test tomorrow.

Hi Mark. With the kind of information you have given me I can tell you know what's going on. I've answered nearly 2300 questions in 7 years on my site and when pool owners use words like suction side and pump housing, they already know what's going on. I'll just connect some of the dots.

If there are no bubbles, cavitation, and you have solid water flow in the pot, there's no issue on the suction side. Sometimes the issue can be a sticky skimmer weir or low water level. Those are easy fixes.

Then you have the return side, the area from the pump motor, through the filter, and back to the pool. Be sure all unions are good and not leaking. There's always a possibility that the pump or filter housing can be cracked. Leaks need to be determined by a visual, something that cannot be done through emails. I did a detailed video about bubbles returning back to the pool:

I can assume when you say split pump housing it has a belly band. That might not be sealed well enough.

Check out the video above. It covers much ground that is easier to convey.


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