Help cleaning inground Pool
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I have an in-ground 36×18 ft pool with a deep end about 10 ft deep and shallow end about 4 ft. I’ve been told it is 36,000 square feet. Anyway, I have lived in my house for the 4th pool opening. I have had great success and great failure over the years cleaning it and keeping the algae away. I tried a few times opening my pool but the algae kept coming back. We had a baby and figured we would never use the pool so we covered it up. It had a lot of algae. So I drained all of the water this spring and refilled it with new water. On the deep end bottom of the pool, there was a few inches of dirt that settled during draining. If I try vacuuming this up, it just shoots right back into the pool and clouds up my pool. It is almost like the dirt particles are too small and go right through the filter. I have a cartridge filter.1) will I ever be able to get that dirt out of my pool? 2) if I get a new filter with “backwash”, can I vacuum the dirt and it dump into my grass and NOT into my pool?
Yes… you are correct, it is 36,000 GALLONS not square feet.
Being ignorant to the definition of “backwashing”, I wanted to be sure I understood it correctly. Can I backwash the following way: vaccuum dirt into the filter and have the water go out into the grass rather than back into the pool and dirty up the water??? I am sure this is a real easy question for many out there, but I am still a pool newbie.
Thanks for all of your answers already!!!
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4 Responses to “Help cleaning inground Pool”
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A pool that large should have a secondary sand filter after the cartridge filter. A sand filter has a backwash that dumps to the sewer system It uses fine grained sand to filter out the dust particles that are plaguing your pool. When you get it installed, keep your filter system running all the time when you have water in the pool. You may have to treat the pool with a ‘floculant’ that will make the sediment coagulate and become bigger particles.
I have an above ground pool so if it something in the pool that is too small for filter we just dump it on the grass. I do know that they make vacuums that don’t hook up to the filter and just hookup to a garden hose and have a bag that you empty.
First of all, you don’t have 36,000 square feet there – square footage would be 18 x 36 for 648 square feet, cubic measurement will be roughly 5000 cubic feet if the pool slopes evenly from 4 feet to 10 feet. None of that really matters anyway.
The cartridge filter was not designed to remove that much sediment at once. Try renting a sludge pump at the tool rental store. Get the intake down into the deep end and go for it. If the pool has a liner, make sure you don’t make a seal with the bottom or the pump will try to suck the liner up along with the silt.
Try vacuuming with filter set to back wash. The head of the vacuum I used to use had a waterhose attached to it. I never had a problem like this, but my filter was a sand filter.