better get a wet/dry vacuum
Go to home despot and buy a sprinkler timer. Attach the hose intake fitting to the timer, then attach the timer to the source water faucet. It will save you money and a headache or two, and help insure harmony in the home.
Spectrapure also makes a
float valve that uses a feedback pressure relay to turn off the source water when the float is actuated by high water, I bought one several years ago, dont remember what I paid, but I never installed it (I'll get a round tuit eventually)
hth