This is all I've ever added, or all I'll ever need to maintain the water in my spa!
Generated from my Motorola Z2 using tools.rackonly.com
From left to right:
- Baking soda to raise TA, $1 (only if I undershoot with too much acid on first fill).
- Dichlor to add CYA, only used for first week or so of new fill, $20.
- Walmart bleach for chlorine, $2.50.
- Muriatic acid to lower TA/pH, $6. Available at any home improvement store.
- Taylor K2006 + Speedstir, approx $100.
As you can see, the dichlor was more expensive than the rest of the chemicals combined, and the only thing that's pool or spa branded. For my spa, it'll last years because I only need a tiny fraction of the container to get my CYA to 30 ppm. The cost of other stuff is negligible. I spent way more on the test kit and Speedstir than I have on chemicals, and will
continue to spend more on the test kit for refills than I will ever spend on chemicals!
This is awesome! Before I found TPF (luckily
before I got my spa), the websites I was reading said I
needed to buy like 10 different chemicals all at like $10-20/bottle. And it turns out all I need is 4 chemicals and a good test kit, 3 of which aren't even pool specific so they are dirt cheap.
Only thing not in the picture is borax, which was an additional $2 but it's not necessary to maintain great water.
Short answer, as the others have said, is yes to your question. Follow up is to read up some of the links posted in the replies and stop buying the expensive chemicals in the first place.
