PH and water density/flow?

[banditpowdercoat]

Originally Posted by BlueAbyss

Do you have a ball valve or a gate valve on your herbie? I understand some ball valves are 'inaccurate' or hard to adjust, and I've heard of valves 'adjusting' themselves under pressure... could be the valve.

Ya forgot to add, got a gate valve. Next step is a flowmeter on the sump return line, see what the pump is acctually pumping up to tank.

It's not a major problem, just gets annoying as every 1-2 days I need to adjust the gate.