Recent content by Octoben

Also, is pure boric acid actually pH neutral? Seems like it would be slightly acidic, which would explain why companies add the borax.

I agree but I don't have a good local source for boric acid, and I can just grab this when I grab any other chemical I need. Instructions say 0.2 g / L. For my tub (1627L) thats 325 grams which is right around what PoolMath recommends for pure boric acid to get to 30 - 50 ppm! Thats about 2.5...

For anyone who find this and wants the MSDS for spa boss ultra spa, here it is: MSDS I hate it when spa chemicals don't show whats in them on the bottle, so I'm posting this to help anyone who is searching for this info. Basically it's a pH neutral borate additive: ~30 % borax ~70% boric acid...

I got the flask after. It had a 4oz capacity per pour. It works pretty well but honestly I find myself just using a pyrex measuring cup and pouring the bleach. I've gotten pretty good and not spilling. I add required amount of bleach (~ 4oz - 16 oz depending) to the measuring cup, pour it in...

Perfect! This is just like the fuel stabilizer containers I use!

Just checked the freezing point of bleach. It would definitely freeze in my climate so the stenner is out, unless it was all self contained inside the hot tub enclosure some how.

That would be awesome. I just searched and found a guy describing his hot tub stemmed setup, but looks like it’s uncommon and not as well adapted to hot tub. Would involve cutting a hole in the tub for injection and somehow timing the injection with the filter cycle. I’ll file this one under...

I recently switched from dichlor to bleach. My wife was concerned about getting bleach on her clothes. I was thinking I just needed to be a little careful when measuring it out, but I too have been annoyed with the design on the bleach bottles and always seem to have to wipe up drips. I pour...