I am planning on installing a Stenner pump to replace my salt cell solution. I wanted to get any feedback on my plan. My pool is ~18K gallons. My current 6% bleach demand is about 2 quarts a day. I plan on getting a 15 gallon unit with the 45MHP22 pump. This is an adjustable 25-100 PSI pump that will deliver between 0.05 to 0.92 gallons/hr. I plan on connecting the pump to an extra relay on my Pentair EasyTouch system. What I was thinking of doing was starting the pump about 20 mins after my main pool pump comes on and dosing at pull rate for about 25-25 mins. This should inject the needed bleach into the pool and then give it bunch of hours to fully circulate. My thought process was to have the pump do a high rate injection so if I need to shock or dose higher I can just turn the pool pump and bleach pump on for the time needed to reach the goal. Besides any feedback to my general plan above I do have a few questions I was hoping I could get some answers on.
1. I need to know if the injection fitting installs into a 1/2" PVC threaded fitting. I am planning on installing a 2" "T" and putting a 2" slip to 1/2" threaded adapter. Need to make sure that is the right size.
2. Should I use the 1/4" tubing or 3/8"?
3. My pool pressure is 20-30 PSI so I figured the 25-100 PSI unit was the way to go here. Is this the right pump to go with?
4. I may add another unit later to handle PH. I was thinking of installing a 2" 4 way instead of a "T" connection to provide 2 of the 1/2" threaded connections and plugging the unused one. The question I have are there any issues with having the two injectors opposite each other. Are they long enough for the tips to touch inside the pipe? I would not think so but wanted to check.
I appreciate any feedback.