Bleach and Floater Use

Hi guys,, It has been a long time since I have been here but good to see some of the old names still on. I have a couple of questions and if any of you have any additional advise please do so. So here is what I have,, inground vinyl liner around 20,000 gal when full,, but the top of the liner is beat full of holes from a hail storm so I am guessing closer to 16 to 17K gallons. They are telling me it looks like 3 weeks for the liner to be built, scheduled and installed after the insurance company gets done so I am figuring closer to 6 weeks. In the mean time I was thinking about just using the pool at a reduced water level, leaving my SWG off and just using bleach and a floater for chlorine. All the holes are at a level that I can't use the skimmers but will have to pull all the water from the bottom drain unless I try to do some major patching? Any concerns so far?? I will probably use bleach most of the time once the water is stable (Numbers are off the charts now) and use a floater if I am going to be gone for a while. As far as using a floater (which I have never done) which one should I get and do you fill it completly full of tabs or just put in a couple? Thanks in advance,,,,,,,,,,