
Connecting to a tank
To connect to a storage tank without using a check valve, make
sure the pipe from your pump fills the tank from the top of the tank
and not the outlet on the bottom to prevent creating a siphon back
out of the tank when the pump stops. If you’re using a check
valve, you can connect to the bottom or top of your storage tank.
In a later section, we’ll install the tank sensor and connect it to the
controller.
If you’re planning to use a mechanical float valve on the tank to
shut off the pump, or if you are pumping into a pressure tank.
Well seals
You may already have a well seal, or you may be using a pitless
adapter, which allows you to keep plumbing below ground. If not,
you’ll want to procure a well seal that allows your pipe, wires, and
safety rope to exit the well while preventing any debris from falling
into the well. This can be installed last, after testing and final
installation of the system.
Check valves
For long runs of pipe, you may want to install a check valve. For
any system using a pressure switch, a check valve is
recommended. You’ll need a 1 ¼ - 2” stainless threaded nipple
to connect a stainless check valve to the outlet of the pump. The
barb or your own plumbing will thread into the upper part of the
check valve. Ensure the arrow is in the direction of flow.
Check valves are frequently made of brass and your pump
is made of stainless steel; to prevent electrolysis, in this
case use a PVC threaded nipple and a PVC barb for brass
check valves.
Torque arrestors and spacers
Some traditional well installers are accustomed to using
torque arrestors, but because RPS systems feature a
slow-start and slow-stop, they don’t create strong torque
like an AC pump. For this reason, spacers and torque
arrestors are far less commonplace in this setting. They
can be used if you prefer, but are usually omitted during
installation.
Debris filters
While some well owners choose to place a non-degradable
well sock/mesh over their pump, this is unnecessary. All
RPS pumps feature a filter screen that will prevent
anything large from entering and clogging your pump.
The amount of total pump head (shown in feet) increases due to friction over long horizontal distance of poly pipe depending on the diameter of the pipe.
Smaller diameter pipe adds more head to the system.
5 GPM 50 GPM
Tank float
The tank float switch included in your kit is optional but
very useful; when the water level in your tank rises to the
level of the sensor, it sends a signal to the controller to
shut down the pump and prevent your tank from
overflowing. You can install this sensor at the top of your
tank or wherever you want the water level to stop rising.
Extend as necessary with 16-22 gauge 2 strand wire.
Calculating pump head
OTHER CONSIDERATIONS
17