punkinracer Posted August 15, 2016 Share Posted August 15, 2016 I recently heard about using PH Down which is a pool chemical in a bath for removing scale on forged items. Anyone tried this and if so in what concentrations? I assume the results would be similar to vinegar as it would be acidic? Thanks, Pat Quote Link to comment Share on other sites More sharing options...
SLAG Posted August 15, 2016 Share Posted August 15, 2016 The product name gives it away. "pH down" probably connotes a solution that would lower the pH. and make it more acidic. pH 7 is neutral and pH 7 and up is a basic solution. Acids lower the pH so it is a good bet that the product has acid in it. (i.e. pH 6 to 1 is acidic). Clear as mud what hey? SLAG. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted August 15, 2016 Share Posted August 15, 2016 As I recall it was something like sparex #1 and if it's going to change the properties of 100's of gallons of water it probably is fairly strong when sourced. Have you checked the MSDS for it? Quote Link to comment Share on other sites More sharing options...
dks119 Posted August 16, 2016 Share Posted August 16, 2016 sodium bisulfide Quote Link to comment Share on other sites More sharing options...
punkinracer Posted August 16, 2016 Author Share Posted August 16, 2016 Brian Breazel mentioned using it in one of his videos. I know nothing about pools and what the product is actually used for so you guys are probably correct. I'm willing to try it out but I'm not chemist and I want to be as safe as possible. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted August 16, 2016 Share Posted August 16, 2016 MSDS for pooltime pH down says: SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS Hazardous components Component CAS-No. Weight percent sodium hydrogensulphate 7681-38-1 90 - 95 % sodium sulphate 7757-82-6 4 - 10 % MSDS for Proteam pool care: Ingredient Sodium bisulfate Sodium sulfate NOTE: Sodium bisulfate, also known as sodium hydrogen sulfate Quote Link to comment Share on other sites More sharing options...
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