Horrible Extenders! Be CAREFUL!!! It may work well to keep the water balanced, but it has one MAJOR issue that caused me one heck of a headache. The part comes with two extender pieces (a longer one and a shorter one). You just push these extenders together. There are two issues regarding these extender pieces. The first, you have to put the long one on first. It's impossible to put the shorter one on first. Second, the extenders have these four little arms that come of the sides (see pic). When I went to pull the stick out,... read more

Katie

on Amazon

7 years ago

I really wanted to like this product I really wanted to like this product, but It just didn't work. I bought the correct test strips and the chlorine free shock powder. Though I adjusted for PH I was never able to get the MPS levels to register, meanwhile, the pool got very cloudy and started to turn green. As soon as I returned to using chlorine again it perked right up.

Rachel T.

on Amazon

7 years ago

Meh. Did nothing to assist our spa. We have bromine in ours, so it may work better for chlorine.

Bruce W.

on Amazon

7 years ago

One Star Dose not work on ALL portable spas.

OtessaRN

on Amazon

7 years ago

As described Replacement-as described

Lily Bear

on Amazon

8 years ago

Bad Buy I have purchased this stick before and it had worked perfectly. This time the stick made my water cloudy and smelly now matter how many times I changed the water. Very disappointed that I can't return this defective proudut.. Will not buy from Amazon again.

JasonB

on Amazon

8 years ago

I guess this is a good idea. However I guess this is a good idea. However, it does not fit spas sold at Costco (at least current models) so if you have a costco purchased spa avoid it.