LDK - Leak Detection Kit Product Video 

Thanks!

Don't quite understand your question.

Neptune Systems Neptune Systems I have a RedSea Max S-650 and I want to install a check valve on the return line to prevent overflow in the case that the return nozzle is too deep into the tank. Now you guys came up with the FMK and my question is if a install the FMK next to the return pump in the event of a power failure will this flow monitor act also as a check or only is for flowing water Let see if this is more clear Monitor flow in one direction but if power went off when the water return will act as a check Maybe this will give an idea of introducing the check to the FMK Thank you!