same old dirt

[mja351]

alright i hope everyone is well....here's my dilemma i have a 12 foot round above ground pool. its small but its our little oasis in the heart of the big apple.i have a hayward easy clear 40 sq ft cartridge filter with a 1 hp pump.i installed a brand new cartridge this season and the pool water is very nice just wish the weather would start cooperating here.i have some dirt on the bottom on the pool that i cant seem to get rid of.its like a very fine powdery type of dirt u sweep it with your hand and its just blows away.well i vacuum this dirt up shut my filter and take a nice swim the bottom is beautiful and clean.i get out of the pool turn on the filter and a half hour later that same dirt is back on the bottom .this has been ongoing for a year now and i have even vacuumed taken the filter apart washed everything put it back together and yet that same dirt is back in the pool a half hour later. WHAT GIVES?????

[aylad]

If you'll post a complete set of water levels using a drop-based kit, including Free chlorine, combined or total chlorine, pH, Alk, CYA, it will help us rule out some sort of algae, but the more logical explanation is pollen and everyday dirt that gets into the water and just settles to the bottom of the pool.

How does your water look?
Janet

[mja351]

the water is crystal clear cl 3 ph 7.4 alk 80 cya 20 how can everyday pollen and dirt gather so quickly there isnt a tree insight did u read the question correctly janet?

[aylad]

Yes, I read the question correctly. You asked for an answer, and I gave you an educated guess with the information that I had about your pool.

I know that it can gather so quickly because it does in my pool, as well as many others. When you vacuum the stuff up, chances are good that some of it dissolves into the water instead of escaping through the vacuum.....but if you don't have a sand filter, and aren't introducing sand, then chances are good that it's either airborne stuff settling out, or some sort of algae. If your CYA is 20, and you consistently keep your chlorine above 3, then it shouldn't be algae if your water is clear. Do you have any combined chlorine? Do you have overnight chlorine loss? If the answer to both questions is no, and you aren't introducing sand/dirt into the pool, then it's just everyday stuff settling out of the water. Vacuum it up, or stir it up into the water so that your filter can get it.

Janet

[Watermom]

I think dirt on the bottom of a pool is typical of everybody's pool. I can vacuum my pool one evening and by the next day, there is already a little dirt/dust on the bottom again. Of course, as soon as we are in the pool moving around, the dirt gets into the water suspension and you don't see it. Later, when the pool settles down after we are done swimming, it will resettle. Especially in the "tape lines" underneath my liner where the underneath foam padding is taped together. No matter how clean I seem to get it when I vacuum, the next day there is always a little on the pool floor. I have a feeling that is what is happening with your pool as well. BTW -- Welcome to the forum!

[mja351]

i appreciate both of your answers but to me it seems its the same dirt im vacuuming up coming right back in the pool i was wondering if there is something wrong with my filter or maybe my pump is too strong for the filter and causing blow by with the smaller particles i thought someone might have had this similar problem.for there to be the same amount of dirt on the bottom a half hour after vacuuming it clean seems fishy thats all