
Originally Posted by
87SunSportMikeyD
Looking at your pic above again.. people say if the fill/drain line for the top sac is run to a loop that is higher than the highest point on the top sac, it will not drain down. However, it will still syphon down EVERY TIME after you turn the pump off unless you route in that anti-syphon valve.
Also note that if you are running more than one sac on a pump, make the TEE as close to the pump as possible. Also make the lengths of hose the same length even if one sac doesn't need it. This will help the sacs to fill at the same RATE so they are full at the same time.
Another solution that you will NEED for our system is flow rate control on each sac. I have a manual valve on each sac. Once I add more pumps I will not need to open or close any sac - however, if I close a small sac 20% it should finish filling at the same time as a larger sac.
I am going out this afternoon and I will be doing some testing. Testing what heights to make my overflows. Testing what happens when I link different sacs together.