Cockpit Drain Hose

[WilfA]

What type of hose would you recommend for connecting two cockpit drains to seacocks (seacocks below waterline).
Each hose length is about 500mm, internal diameter 1 1/2 inch . Hoses do cross. Current hose is green PVC, lightly corrugated outside with PVC spiral, semi transparent hose . It took the curve of the crossing fine when installed 12 months ago (when replacing the seacocks) but one hose has developed a kink just above the end of the seacock hose fitting. The curve shape must have caused the corrugation to collapse over this period. Wondered if anyone had a good recommendation.

 

[dankilb]

That sounds like domestic water hose and isn’t really the right thing.

Marine exhaust hose would be a ‘bulletproof’ option. Advantages are moderate heat/fire resistance and very hard wearing. The steel spiral holds the shape and takes a bend nicely. Or any EDPM spiral bound hose should do (examples inc. some types of reinforced fuel hose or auto coolant hose). PVC isn’t ideal - although in its steel spiral reinforced form it’s fine and widely used for sanitation or raw water hoses. I’m not sure sanitation hose would be my first choice (over wire reinforced EDPM) in the rough and tumble of a cockpit locker or in an engine compartment and with a fitting below the waterline (presuming that’s where the skin fitting/through hull is?).

 

[Poignard]

Mine is clear plastic with a spiral reinforcing wire that I bought from ASAP Supplies Ltd

 

[BobnLesley]

We had a similar set up with two cocks/four drains on ours, I thought it was an awful design but couldn't see a way around it: If the hose fails (our cockpit floor was <3" above sea level) the boat sinks, but you can't close the sea-cocks when you're away from the boat or it'd potentially flood with rainwater instead
We, as suggested by Dankilb, replaced the brittle/crappy/30-year old stuff fitted when we bought it with marine exhaust hose. doubled-up 316 jubilee clips and bronze T/Y pieces to connect them all up, bloody expensive and an absolute bar steward of a job to fit in the confined space under the cockpit floor (only accessible via a small hatch in the bottom of the starboard cockpit locker) but I felt a lot more comfortable ever afterwards.

 

[SlowlyButSurely]

This is what I used:

Green Tint Water Suction & Delivery Hose

 

[Refueler]

I have fibre re-inforced domestic water pipe ... the near clear pipe that has criss-crossed fibres embedded in. Been there since long before I bought the boat near 20yrs ago.
Being near clear ... I can see if any blockage in it .. ie leaves.

Each has a ball valve at the hull exit which I close when sailing as they exit only about 1" above W/L. If I am under power - I often get wet feet if I forget to close !