Diluted?queequeg152 said:ahaha. acid bro. been there dont that about a billion times. pool tiles need the treatment basically every year.
go to the pool store and get some HCL... about 8-10 bucks a gallon if you buy a box. get some goggles and gloves maby.
buy a flip top bottle ... like what you use in a suntan lotion bottle. your pool place may or may not sell them(or give them away in my case).
like this.
http://www.usplastic.com/catalog/item.aspx?sku=60149&gclid=Cj0KEQjwiKS3BRCU-7XQ75Te3NoBEiQAA2t_xB7-wydwlUXzwrFOUxQj36v9TuOTZiePvryKVQKN_nEaAoML8P8HAQ
get a nylon brush, no metals... nothing reactive.
then sorta dripple it down onto the calcium buildup.
it will react and release co2 heat and steam and water. dont breath any of that in.
cheapest by FAR. but there are also acid gells that work better as they cling onto the surfaces. they cost alot more though and usually are pissy weak.
Sizzle Lips said:
Wife used it with a scrub brush. Poor results.Sizzle Lips said:
I wonder if it might be a by-product of the antifoaming agent I add. I'll check the ingredients.queequeg152 said:its certainly possible its not calcium.
do you have any nitric acid(hydro ph down) or sulfuric acid(drain cleaner)? scrape some white junk off and dribble a tiny amount of acid onto it.
if it bubbles its probably carbonate.
or phosphoric acid? another hydroponic ph down
Undiluted sulphuric acid. Dribbled it straight from the bottle.queequeg152 said:interesting. i wonder what it is then. how concentrated was the acid?
if it was carbonate you should have seen somthing like this very briefly, provided you scraped off enough of it.
https://www.youtube.com/watch?v=Lw3bWR0Ws7M
if it was residue surfactant, it would come off with some polar solvent like water. i guess it could be soap scum. that should react with acid though.
you might just get one of those scrubby brushes that attack to your drill and maby something like a pummice gritted cleaner or what ever.
Roguejim said:Undiluted sulphuric acid. Dribbled it straight from the bottle.
Soap scum?? From what? So, you think the hcl acid would be a waste of $$?
rjacobs said:muriatic acid. It will eat it. It eats concrete.
queequeg152 said:
certainly HCl(muriatic)
HCl is by far the cheapest, thats why i reccomended it earlier. however no reaction means its probably not carbonate scale.