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no just a kind of yellow on the plaster. I used with pool circulating, when stains didn't remove i added more to the area still stained. Certain Spots kind of look the way a step looks when a trichlor cloater gets stuck on it. That is what im referring to with burn, that type of stain is often...

Can ascorbic acid burn the plaster or damage it in any way?

Is a product called resist from applied biochemists a worthwhile sequestrant?

yeah i cant find the article anywhere online, but it was something called the pool and spa newsletter. Ill have to see if it is still laying around the store tommorow

Fitting extenders will fit glue over the 2 in couplings

in my opinion the spring loaded ones are far and away the way to go. If you make sure to get the right size it will stay put forever. Also they float to the surface of the water giving you much better skimming action

Curious if somebody here wrote an article for this pool and spa newsletter. I was at the warehouse casually flipping through the newsletter when i saw what looked like the exact same FC/CYA chart i have seen on this forum. It had minimum fc, target fc, and shock fc levels for cya levels from 20...

I find it really hard to believe that this will outperform the $10 styrofoam weirs

Does the pump hold its prime when it is shut off? If it doesn't the water in the filter tank can drain back through the lines into the pool taking some DE with it.

How effective is an acid wash on scale built up on the tile and grout. I am getting a lot of conflicting opinions on this. Thank yoU!

On Hasa's website they list one product as sodium hypochlorite and another as filtered sodium hypochlorite. What exactly is the difference?

How do you get enough suction to run the vacuum efficiently out of that line that was originally intended for a pressure side line? Personally i love the Pool cleaners, especially the four wheelers

Are borates illegal for use in pools in california? I have asked distributors and retailers about getting borates and nobody has ever heard of it. Bioguard manufactures some for use in pools and the website wouldn't let me ship to california. It seems like it must be illegal but i cant find...

Recently started caring for a new pool. The pool is about 6 weeks old. I have been taking care of it for one week. It is a pebble tec surface. It has an IC 20 although it has never been used because it is too cold. When the surface is brushed white stuff comes off the surface. It looks like...

No i just saw this at the store the other day and asked them what the price was. do you think it truly is equivalent to 1 gallon MA?

well the reason why i ask is because i pay $4 for a gallon of acid and a bottle of this stuff is $2.99

Has anybody tried this product? Does it work as well as acid? The bottle claims one bottle is equivalent to one gallon, does anybody know if this is true? Thanks

I have a customer that has an old DE filter. They want to replace and dont have any preference of which filter. I have a sta rite cartridge filter in stock that they want me to put in because ill give it to them cheaper. Anyway The old filter had a brass push pull backwash valve and copper...

its a waterway pump...so everyone thinks its just a bad pump?

i did not test the cap. i dont have the equip.

http://www.youtube.com/watch?v=etoWlUoCrvg&feature=plcp Video of the Pump in question

Got a new pump for a customer today. Wired it up, plumbed it, and when I turned it on it makes a loud stressful noise like it is trying to get started but it never does and after 30 seconds or so it kicks the internal breaker. The motors voltage is 230 which is what we need. The impeller is...

neither have backwash valves

I maintain a pool in which the fill water is from a well which puts lots of metal in the pool. So much metal that the pool turns green whenever a few inches of water is added, and then clears up after a few hours. When i started servicing the pool the cya was up around 80, a few months later i...

it is most likely the pump lid o ring or the o rings in a valve on the suction side.

Yeah i don't really know, this is the first time i have seen them while the pool is filled. Usually i don't see them until after i have drained the pool, because you can't see to the bottom. The majority of the time though, i don't drain the pool, so maybe after 20-30 gallons of cl they dissolve.

Richard does indeed have it right. Those briquettes are exactly what i am seeing. Well i am glad i know now. Thanks

I see a lot of foreclosures that have pools that are swamps. I would guess that 50% of them have these strange white cubes in them. There is usually around 5 in the pool. They are about 1 inch by 1 inch. I have never once seen them in a clean pool. I had always kind of assumed it was...

i thought that it might be important to know, since it is what is actually available to kill organics. I didn't realize you could just calculate it from knowing the cya and fc levels. I did have another question on the topic. Is unbound chlorine protected by cya at all? Or does it have the...

http://www.iccontrols.com/product.php?Model=875-25 would this product measure the active chlorine level? By active i mean the chlorine that is not bound to cya.