I am trying to automate my pool, having been wavering between a SWG and a bleach injector. I am now leaning toward a Stenner tank with bleach, plus or minus a second tank for muratic acid. And most likely a CAT controller to further automate. Question: 1. what size Stenner pump flow rate should I be looking at (adjustable or fixed rate)? 2. Size tank? 3. How long is the bleach good for once added to the tank? Thanks.