My water needs help

[Bosch232]

Well tonight I did a very smart thing: I took Pool Doc's advice.

I took apart my filter and checked the sand.
See where I'm pointing? That's all the sand left in the filter.
This explains a lot of last year's frustrations as well.
Honestly, it never occurred to me that I could be losing sand out of the backwash.

I do agree that the dichlor has gotten the CYA out of hand.
First things first: Purchasing silica sand from Concrete Industries tomorrow.

[PoolDoc]

Wow! Even I'm surprised that it is THAT low.

Thanks for posting that.

Keep in mind that you'll need to reduce the backwash flow, or it will happen again. The fastest short term solution is a valve on the discharge line, allowing you to throttle flow.

Long term, a smaller pump OR a smaller impeller in the existing pump -- assuming you can find the parts -- will not only save your sand, but will improve filtration. Excess flow not only causes sand loss during backwash, it also causes dirt to be driven THROUGH the sand bed, and back into the pool!

Good luck!