Learning the HARD way...
Join Date: Jan 2007
Location: Boston / Ft Myers Area
Thanked 105 Times in 102 Posts
Rep Power: 9
Re: anti siphon valve universal m25
I had a nylon vented loop on my O'day 35 with an M25. I broke it, and have since installed a Forespar Marelon loop, but removed the duckbill, and retro-fitted the 3' long tube that goes well above the water line, and was originally on the nylon loop. I keep the duckbill - just in case.
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USCG Licensed OUPV Captain, ASA 101/103/104/105/106/118 Instructor - Also certified in Marine Electrical Systems