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Best material for bilge pump hose?
Posted: Thu Dec 25, 2014 11:53 am
by Maestro
All of the bilge pump, sink drain, and scupper drain hoses on my boat are in need of replacement this spring.
Anyone have a material that they like better than the typical corrugated plastic hose? All of my current bilge pump hoses are of this material and I found cracks in several places.
I feel like the braided/reinforced vinyl tubing available at most hardware stores might be a better choice. Thoughts?
Re: Best material for bilge pump hose?
Posted: Thu Dec 25, 2014 1:42 pm
by jralbert
Your friendly neighborhood boat store can help you here. Just two cents worth from here: You are right on not wanting the corrugated hose on your bilge pump output. Tests long have shown that the corrugation is a big drag on the output capability of the pump. Use smooth stuff here. The sink drains (and other drains not under pressure) don't have to be reinforced hose - there's little strain on them and I wouldn't use corrugated here, either because it might trap some food particles and create some slime over time (rhyme unintended).
Re: Best material for bilge pump hose?
Posted: Fri Dec 26, 2014 1:40 pm
by bcassedy
I actually replaced my aft bilge hose this past season. I used the braided/reinforced hose just as a precaution (you don't get the moniker "Overkill Bill" from family for nuthin'!!

). What bothered me, both with the reinforced and what I perceived would be even a greater potential for non-braided/reinforced hose, was the fact that the hose seemed to flatten as it made a bend near the hull's fitting. I opted to use a couple of pieces of 3/4" plastic Schedule 40 pipe glued (welded?) into a 45 degree female fitting. This gave me the opportunity to use a long enough section of pipe on both ends to double clamp the hose to the pipe. Ensures there won't be a slip off of the hose and having the bilge pump just pump water back into the bilge.
Bill
Re: Best material for bilge pump hose?
Posted: Wed Dec 31, 2014 1:04 pm
by GB49
Check this site. Lots of info on bilge pump install.
http://www.chipford.com/bilge_pump.htm
He is using the same hose that I currently have on all my pumps. Ribbed on outside, smooth inside. Works well.
Re: Best material for bilge pump hose?
Posted: Wed Dec 31, 2014 4:00 pm
by Maestro
GB - any idea on the brand of that bilge hose? The site doesn't seem to mention that. Excellent reference page though.
Re: Best material for bilge pump hose?
Posted: Wed Dec 31, 2014 4:12 pm
by GB49