Another Injector Piping Question

[bill4227]

Can an injector share the same boiler water input with a hand pump?

[AnthonyDuarte]

The delivery line can be shared with other water inputs, but it must have its own check valve to prevent the output of other feeds interfering with the injector's operation. You also don't want the injector feeding back into other sources. It's best practice to have an injector's inputs and outputs be entirely isolated if possible. It is a requirement (not a recommendation) that injectors have their own dedicated water line from the tender.

[cp4449]

Also make sure you have a filter on the injector line