Dirt coming thru my jets when i vacum

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Re: Dirt coming thru my jets when i vacum

Postby jdudge » Sun 31 Jul, 2016 12:54

i have the same problem with dirty water being shot into the pool on start up.. I have a hayward CE 75 DE filter with filter fingers. I've taken it apart and reassembled. Replaced the Diaphram, the top plate and a few suspect fingers so far. The suction and return rate is great. The problem is when I vacuum the visible dirt the pressure is not building up in the filter as it should when it gets dirty.. The only part left to replace is the bottom plate.
Never had this problem before.

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Re: Dirt coming thru my jets when i vacum

Postby paulbest » Wed 03 Aug, 2016 23:47

with sand filters, dirts can be pushed directly through the filter. thus when this situation happens, this may indicate an internal filter problems or a problem with the filter control valve. old or loose valves permits the water to elude the filter and return to the pool unfiltered.

into the bargain, sand filter works well when its a little dry, so prior vacuuming the pool using sand filter, it is highly recommended to not backwash it. you may also want to add filter aids which supplies additional layer of the sand bed to help trap more dirt.

another tip here is to set your multiport valve into "waste". this will pull the water from your pool and directly out of the backwash port. this works effectively especially to debris that are very tiny, fine and small which mainly causes the clogging of your filter.
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Air source heat pump
Cartridge filter

Re: Dirt coming thru my jets when i vacum

Postby GrahamC » Wed 28 Sep, 2016 08:25

I am having the same problem but have a cartridge filter. I thought the cartridge filter should be good enough to filter out the finer particles.
Somebody gave me some clarifier tablets (aluminium sulphate) which i believe make the particles clog so they are bigger, but it says do not use with cartridge filter.
It is getting very frustrating… pool water looks nice and clear, I vac the bottom and all the dirt spits back through the returns and hey presto - cloudy water!
Company that plumbed in pump etc to cartridge filter and air source heat pump have not included a valve to waste - is this best practice or should they have put one in?
What should I do?
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Re: Dirt coming thru my jets when i vacum

Postby Denniswiseman » Wed 28 Sep, 2016 12:45

Is there some propriety additive that can be added to the skimmer to make the your filter more efficient
We add Diatomaceous Earth to our sand filter to get the fine particles but that isn't recommended for cartridge filters
If you don't have a MPV with waste on it. It would have been a good idea to be able to divert your water to waste

I have seen this post about connecting to waste with a cart (not sure if it will work for you)
1. Remove drain plug at the bottom of the cartridge filter canister. Its 1.5 inches threaded.
2. Thread in an adapter or coupling to 1.5 pvc.
3. Then a shut off valve then a 1.5 drain pipe.
4. When I need to drain down the pool open the shut off valve and turn on the pool pump.

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