First question

[n2jss]

I have an 18' round metal frame pool and I have trouble keeping chlorine level with floater. Once I have established a desired level, is it ok to keep it full?

[Watermom]

You need to buy a good test kit so you can test your water. The kit we recommend is the Taylor K-2006 (see the Amazon link in my signature below). It is not available locally and has to be ordered online. In the meantime, pick up a cheap OTO kit from Walmart (yellow and red drops).

Tell us what kind of filter you have and what size pump. Also, tell us the ingredients in those tabs you are using. Then, somebody here can better advise you.

Welcome to the Pool Forum.