Reef Central Online Community - View Single Post - Spot Light On GHL dosing systems and uses

AQD_ottawa · 01/03/2010, 07:22 AM

We have tested these to 20 feet. The use of a non return valve at this height is useful.

01/03/2010, 07:22 AM	#15
AQD_ottawa Registered Member Join Date: Sep 2007 Location: UK/Canada Posts: 8,020 Blog Entries: 33	We have tested these to 20 feet. The use of a non return valve at this height is useful.