Best material for bilge pump hose?

Things that are of general interest.
Post Reply
User avatar
Maestro
Aluminum Star
Posts: 175
Joined: Sat Jul 12, 2014 7:27 pm

Best material for bilge pump hose?

Post 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?
Maestro
1986 32' Sedan
Chrysler 360s
1.5:1 Gears, 16x16 props

1970 28' Express
Single Chrysler 440
1:1 Gear, 14x12 prop

Green Bay, WI
jralbert
Site Admin
Posts: 885
Joined: Fri Jul 11, 2014 9:15 pm

Re: Best material for bilge pump hose?

Post 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).
-joel-
former owner 1988 '32 FB Sedan
Chesapeake Bay
twin 318 / 240 hp
Potomac MD
User avatar
bcassedy
Royal Aluminum Star
Posts: 508
Joined: Sun Jul 13, 2014 10:05 am
Location: Aurora, In.

Re: Best material for bilge pump hose?

Post 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'!! :lol: ). 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
Bill & Sharon Cassedy
"Sunset Seeker"
'88 32' Sedan Bridge to be sold (updtd 1-1-22)
"Sunset Seeker Too" (SS2)
'88 41' Marquis hardtop. (as of 1/1/22)
Located in Aurora, In.
Always fresh water.
User avatar
GB49
Royal Aluminum Star
Posts: 206
Joined: Sat Jul 12, 2014 8:23 pm
Location: Catawba Island, OH.

Re: Best material for bilge pump hose?

Post 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.
1986 Sedan 32'. Twin Chrysler 360in^3, 275hp.
Forum member since 1998.
User avatar
Maestro
Aluminum Star
Posts: 175
Joined: Sat Jul 12, 2014 7:27 pm

Re: Best material for bilge pump hose?

Post by Maestro »

GB - any idea on the brand of that bilge hose? The site doesn't seem to mention that. Excellent reference page though.
Maestro
1986 32' Sedan
Chrysler 360s
1.5:1 Gears, 16x16 props

1970 28' Express
Single Chrysler 440
1:1 Gear, 14x12 prop

Green Bay, WI
User avatar
GB49
Royal Aluminum Star
Posts: 206
Joined: Sat Jul 12, 2014 8:23 pm
Location: Catawba Island, OH.

Re: Best material for bilge pump hose?

Post by GB49 »

West Marine has it. Probably find it online too.

http://www.westmarine.com/buy/shields-r ... 33_001_011
1986 Sedan 32'. Twin Chrysler 360in^3, 275hp.
Forum member since 1998.
Post Reply