Help improve the accuracy of the results. Wide Applicability- Our pool and hot tub test strips are suitable for all settings. They work for above-ground pools, in-ground pools, hot tubs ...

An average person might take a water quality reading once or twice a week using test strips, but such a low ... [Stephen Carey] has therefore built a hot tub monitor that checks the water quality ...

9 Way: These test strips for pools and spas read 9 different chemicals in the water. The pool strips test 9 way offer clear readings in daylight and come with detailed instructions Experience our ...