Are you having issues with transfer strainers staying in place at high water flow rates?
Try a Firovac(TM) HV-LL!
Engineered to pull itself to the floor WITHOUT pulling up the tank liner, our strainer WILL NOT raise off the floor, or float. In fact, the higher the flow rate, the more it pulls intself to the floor.
Initial testing shows that at 1000 GPM it takes 25 lbs. of force to pull the strainer off the floor, and that at 1700 GPM it takes 50 lbs. of force to pull the strainer off the floor.
Using less "parasitic" water to accomplish these flow rates makes it very efficient.
Orifice size can be easily changed depending on pump size and desired flow rate.