PoolCheck® Phosphate (Bottle of 50 tests)

At last I can test and then remove phosphates from my pool. This has much reduced use of chlorine to kill the algae. Yipee

The blister pack isn't really a helpful choice. A box or case to keep the bottle, test tube and card in would make it even better.

I have been having problems with saltwater cartridges failing every few weeks in a few months old saltwater hot tub, nobody suggested it could be phosphates, the general opinion being that that was an american problem? However, this relatively easy test showed my tub to be very high in phosphates, once I knew it was easily rectified using phosphate remover and checking again with the test kit which I now do every couple of weeks. Phosphates are in most things, rain, leaves, insects, shampoo, anti perspirant, how can anyone with an outdoor tub or pool not have this problem?