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I've had this spa a little over 2 years. My TA runs around 35 to maintain a good PH around 7.6. Of course on poolcalc my CSI is kinda far into the negative - around -4. The water starts with a CH of around 80 and I've always just bumped it to 150 and left it there, but now I'm wondering...

First - thank you all for the help. 1.5 years into happy spa ownership thanks to the sage advice of this forum. Now we have a minor problem. The vinyl cover that came with the spa is shot - living in the high desert of NM we have a very high UV index so I'm really not surprised. The spa is...

Is anyone else seeing this, both Google Chrome and my Trend Antivirus are warning me that it is infected by something. Here is what google says about it: http://safebrowsing.clients.google.com/safebrowsing/diagnostic?site=http://www.poolcalculator.com/&client=googlechrome&hl=en-US The site...

Hey all, Haven't been around for a while - things have been GREAT. We still love the tub and thanks to you all it has been very low maintenance. Current #'s FC - 8.5 CC - <1 pH - 7.6 TA - 50 CH - 130 Assumed other values from prior test or in the case of Borates just educated guess from...

All, first off THANK YOU - what a fantastic resource you have going here. We received our new 290 Gallon spa on April 30th. We were (and are) totally new to spa/water maintenance and had no idea what we were getting ourselves into. Diligently took notes from the spa guy as he told us how to...