New to forum, new to pools. Need to acid wash?

[PoolDoc]

Reading has told me that after draining, bleach/CLR/MrClean Pads should remedy these stains, and I try to pretend to be a DIY man when I can.

Not sure where you read that, but it's not true. (If it's here, and you can find the post, please let me know so I can 'fix' it!!)

Do not EVER use "Mr Clean" in a pool; chlorine resistant soaps and detergents are very hard to get out of the water! If you mean, MrClean metal wool pads, those are a total disaster -- the steel wool flakes and then stains the heck out of pools!

Bleach with remove *some* organic stains. But often, brown stains around a return are iron, or rarely, manganese. Put a Vitamin C tab on one of the spots and see if lightens overnight -- if it does, it's probably iron. Also, check the inside of your toilet tank -- assuming you use the same water in your pool, the color inside the tank will indicate whether there are metals in your fill water.

Pool 'popping' is a function of saturated soil; a pool on a hillside in New Mexico is not at risk, unless there's something really weird about your property.

[BigDave]

Perhaps mblock22 is referring to Mr. Clean Magic Eraser - foam pads with some abrasive embedded. I don't know what's in CLR but it does seem to do a pretty good job cleaning metal stains in sinks and bathtubs. If I were to use something like CLR in a pool, I would try to retain remove all the runoff to keep it out of the pool water.

[PoolDoc]

You may be right; I dunno.

I do know that some vendors sell products for pool use, without regard for the effects they may have on the pool water or chemistry. So, the maxim, "trust, but verify" might better be modified, "don't trust, till verified"!

[BigDave]

That of course, plus I don't think Mr. Clean pads(magic eraser?) or CLR are marketed for pool use so maybe "You're on your own - tell us what you did and how it worked"

[PoolDoc]

Ah yes. It's the 'official policy' of the PoolForum to recommend that pool owners avoid becoming test subjects for all the dodgy pool products out there. But, if they choose, on their own, to become 'guinea pigs', we certainly welcome their reports on the results!