Better stop using EITHER trichlor OR dichlor, till you've gotten a good test kit: your stabilizer level may well be on its way to "too high"!

Instead, add 3 gallons of PLAIN 6% (check the %) household bleach EACH evening, till you hold chlorine levels without loss overnight. And, get a kit:

+ Here are links to the kits we recommend:
HTH 6-Way Test Kit @ Walmart
Taylor K2006A (3/4 oz bottles) @ Amazon
Taylor K2006C (2 oz bottles) @ Amazon