I've installed micro irrigation, as:

water butt > pump filter > Shurflo 30psi pump > 16mm supply pipe > 4mm pipe > emitters

Have seen others mention dirt can enter the emitters & eventually backflow to the pump. It seems either an inline non-return/check valve or inline filter would be suitable on the pump output, but the budget only allows for one. Are either really needed, and which connector would be more beneficial?

Many Thanks

1 Answer 1


If backflow is a proper issue then the check valve may be your best option in that its sole purpose is to prevent the backflow of fluids in a system.

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