Anyone ever had problems with the WCW backpack pump turning off and on when the water flow is off, as if a small leak, but their isn't a leak? It should stay off all the time but cuts in every few seconds.

my omni one does it i think its just where i joined the microbore with jubilee clips isnt airtight

My trolley does this its got 2 connectors between pipework & pole so slight air gap adjustment actually I nearly left it switched on had it not made a noise Id have flattened battery overnight