Float vs Altitude Valves : Pressure switch vs Hardwire connection

[JAZZEF]

I’m working on a Spring Booster Pump Station Rehabilitation.

I have a question regarding the control of the booster pumps based on the height of water in the storage tank. As per current plans, there's a hardwire connection between the float system at the tank and electrical controls in the pump house. I have some concerns regarding the reliability of the buried hardwire control connection and was thinking of replacing this with a pressure switch located at the pump house. However, two issues arise: whether the discharge pressures at the pump could accurately represent water levels at the reservoir, and the possibility that surge pressures from pump start up could cause the switch to trip/chatter.

I'm also thinking about using an altitude valve instead of a float valve system. Can you tell me the advantages And disadvantages of both valves?

 

[bulkhandling]

It seems your pump house is pretty far from the reservoir. If the primary pump is close to the booster pump, why don't you install the pressure switch at the suction pipe of the primary pump? So it actually measures the level in the reservoir. If the primary pump is far from the booster pump, the pressure signal can hardly give you good control of the booster pump. The pressure at the immediate discharge of the primary pump does show some level change in the reservoir but the signal is mixed and reduced in accuracy. It's not good for controlling the booster pump.

To me, it's always better to obtain control signal from the direct and original source.

Regards,