sand in pool

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brent1369
Pool Enthusiast
Pool Enthusiast
Posts: 10
Joined: Sat 18 Apr, 2020 06:46

sand in pool

Postby brent1369 » Sun 02 Aug, 2020 01:41

if i clean my pool and backwash and rinse it till water is clear,
and i let my pump on filter after a while my pool is full of sand again
i checked the spider gausket and that was fine, i think it might be the laterals but i read somewhere that when they are broken u get bigger pieces of sand in your pool, in my pool its almost like dust when u try to touch it it goes away.

i just dont feel like getting all the sand out of the filter with a plastic cup only to find out that wasn't the problem.

thanks


Denniswiseman
Pool Industry Leader
Pool Industry Leader
Posts: 1761
Joined: Tue 06 Sep, 2011 05:48
My Pool: 10k inground fibreglass, Telescopic Cover, Hayward Powerline pump, Quality filter with glass media, 27kw output heat pump, K-2006C test kit
Location: United Kingdom

Re: sand in pool

Postby Denniswiseman » Sun 02 Aug, 2020 06:25

Are you sure it's sand, if it is where would it come from except your filter
If you vacuum the sand to waste then put the multi port to bypass or recirculate see if more appears
If none appears then set the MPV to filter if more sand appears then you have a filter problem or possibly to fine a sand in the filter
brent1369
Pool Enthusiast
Pool Enthusiast
Posts: 10
Joined: Sat 18 Apr, 2020 06:46

Re: sand in pool

Postby brent1369 » Fri 07 Aug, 2020 07:06

mhm i did that and now i get no sand when in filter mode, i think i only get it when backwashing
Denniswiseman
Pool Industry Leader
Pool Industry Leader
Posts: 1761
Joined: Tue 06 Sep, 2011 05:48
My Pool: 10k inground fibreglass, Telescopic Cover, Hayward Powerline pump, Quality filter with glass media, 27kw output heat pump, K-2006C test kit
Location: United Kingdom

Re: sand in pool

Postby Denniswiseman » Fri 07 Aug, 2020 07:34

When backwashing everything works in reverse through the filter
The pool water goes in through the laterals and out through the normal inlet, backwashing the filter
The flow is sorted in the correct direction by the MPV
The only thing that I can see is there is to much sand in the filter and it's getting flushed back and a bit stuck in the MPV which washes out into the pool
Do you rinse after backwashing, that should remove any excess left in the MPV
It does seem your laterals and internals are OK

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