just used spa purge and refilled. Have only walmart test kit and strips. Walmart test says TH 500, ph 7.8, TA 410, Cya 0( dot never left), and Cl .5.
Test strips said TA 240+, ph 7.8, Cl 0, cya 30-50 does not test CH/TH
I added .5 oz of dichlor per poolcalc.
I lost the link for the discount on the good test kit if someone can provide.
Looking for any advice as I attempt to do it right.
Spa is a bullfrog 552, 411 gallons