use 1 part acid to four parts water. soak until fizzing stops, and hose off. don't soak it longer than the fizzing.

Or Defeating Algae .

Cal-Hypo is NOT safer nor more effective than bleach or chlorinating liquid. It is more concentrated so the part about being "lighter" for...

You can raise the pH with no change in Total Alkalinity (TA) by aerating the water.

You can raise the pH with a small increase in TA by using 20...

Take charge of our own pool by using chlorine alone as described in the Pool School . See this post for more about the link in the previous post and...

Or look at the Pool School . The link given above recommends No Mor Problems, but doesn't say that this is just sodium bromide which turns your pool...

Or you can get your questions answered at the Pool School .

But that link says NOTHING about the chlorine/CYA relationship needed to prevent algae growth. How hard is it to follow the Chlorine / CYA Chart in...

Or you can look at the Pool School to find out even more.

The FC/CYA ratio you recommend is too low to prevent algae growth without the use of a supplemental algaecide or phosphate remover. See this post ....

In a manually dosed pool if you don't maintain a minimum Free Chlorine (FC) level of at least 7.5% of the Cyanuric Acid (CYA) level, then your pool...

Even better than a DPD chlorine test is a FAS-DPD chlorine test. The reason is that the DPD test will bleach out above 5 ppm FC and though you could...

When I run my pool filter what should it be on? Its a hayward top feed, sand filter. How long should I run it the pool is really dirty.

Put your...

Your readings are darn near perfect. Sand filter, you may have a broken lateral. You might need to take out the sand and check them.

We just moved into a new house.
The house was a short sale that had been on the market / vacant for over 500 days.
Everything was neglected, house,...

I take care of the YMCA salt pool, 80,000 gallons. It depends on your fill water and the size of the pool. It shows you have a 22,000 gallon pool....

Most solar covers are pretty good, averaging between 10-15 degree raise in water temp. Some may be a little better than others, but if you're warming...

I've had some grids that were just a few weeks old and the tore, for some reason or another. Usually I'm trying too hard to get them into the...

It is not true that chlorine does not affect yellow algae. It is true that yellow/mustard algae is more resistant to chlorine, but it can still be...

also using a floater or auto chlorinator? it helps to bring chlorine lvls up if on top of putting tabs in your chlorination to put a few in your...