Filling water tank without pressurized hook up

Put a hose fitting on the suction line so you can use a hose for an extension. Install a T with a valve and then a hose to reach your water fill fitting
To Use
1) switch the 3 way valve on the pump to th winterize position
2) use hose extension to insert into water carrier
3) Open walve previously installed on pump out outlet and put the hose into your water fill port.
4) turn on pump