dc_350

Appreciate the quick reply! Decided to start over, draining and refilling the tub. Learned a lot from this thread and decided to start clean. Is there a preferred order in regard to balancing the water? I know that adding salt should be last but what about FC, PH, alkalinity and hardness? Does it matter which you do first? Understand that AL and PH are interrelated... Also, should the tub be at temperature before starting any of the tests? Or is it inconsequential? Thanks!

ph was definitely the problem...stabilized it at 7.4 and no build up in the unit since... Next question...combined chlorine. Does any one measure this? And if so what level do you try to keep it at and through what process? Thanks in advance!

Just used the Taylor kit for the first time...everything looks good...except the PH which appears to be off the scale. On my 4th round of adding sodium bisulfate and still can't get it down to an appropriate level...sheesh... More to follow....

Just bought the Taylor test kit...be interested to see what the results are! Also soaked the SWG in vinegar yesterday and it looks good as new! Thanks!

Just using test strips...I'll check out the Taylor kit. Thanks for the quick response...

First post...very nice forum here! After doing a lot of research I installed a Techniclor unit about 6 weeks (after struggling all last year with BaquaSpa). Very happy with the results so far but I do have a question. I'm noticing a fairly significant white residue buildup in the unit which is dropping out and has to be vacuumed up. Is this normal in the operation of this unit? Water hardness is within the normal range as are the alkalinity and ph levels. Salt is at 2,100 ppm. Tub is 375 gallons fwiw... Many thanks!