Reply
 
Thread Tools Search this Thread Display Modes
 
Old 12-10-2016, 05:15 AM   #1
Senior Member
 
City: Wherever the boat is
Country: United States
Vessel Name: Silver Quarter
Vessel Model: Bayliner 3870
Join Date: Sep 2016
Posts: 456
Raw Water Hose Type

My boat has the steel reinforced marine exhaust hose for raw water inlet hoses... I can understand the outlet one attached to exhaust, but for the rest of the system isn't this hose about 1000% overkill since it never gets even remotely hot? What am I missing? Abrasion resistance?
__________________
Advertisement

kev_rm is offline   Reply With Quote
Old 12-10-2016, 05:40 AM   #2
Guru
 
Rogerh's Avatar
 
City: Niceville, FL
Country: USA
Vessel Name: At Last
Vessel Model: 1990 Jefferson 52 Marquessa
Join Date: Aug 2013
Posts: 724
What ever you use needs to be non collapsible. That is why they use the wire reinforced. The suction from your water pump will collapse a non reinforced hose.
__________________

Rogerh is offline   Reply With Quote
Old 12-10-2016, 06:45 AM   #3
Guru
 
djmarchand's Avatar
 
City: Litchfield, Ct/Punta Gorda, Fl
Country: USA
Vessel Model: Atlas Pompano 23
Join Date: Aug 2012
Posts: 4,648
You can use this Trident non wire reinforced hose on the discharge side of the raw water pump- Trident Heavy Duty Engine Intake Water & Heater Hose

David
djmarchand is online now   Reply With Quote
Old 12-10-2016, 06:58 AM   #4
Guru
 
Cigatoo's Avatar
 
City: Narragansett Bay
Country: New England
Vessel Model: Grand Banks 36
Join Date: Sep 2016
Posts: 708
As stated he sure to use wire reinforced on the suction side. That is anywhere between the pump, strainer and / or thru hull. Don't skimp on any hoses as they are a relitvely inexpensive item that can cause a lot of damage if they fail.
Cigatoo is offline   Reply With Quote
Old 12-10-2016, 08:38 AM   #5
Guru
 
City: North Charleston, SC
Country: USA
Join Date: Sep 2010
Posts: 4,385
Quote:
Originally Posted by Easting View Post
......... Don't skimp on any hoses as they are a relitvely inexpensive item that can cause a lot of damage if they fail.


Raw water hoses are not a good place to go cheap. It will be only a few dollars more to get the best. A failed hose on the raw water side (of the engine or air conditioner) can sink your boat.
rwidman is offline   Reply With Quote
Old 12-10-2016, 09:48 AM   #6
Senior Member
 
City: Wherever the boat is
Country: United States
Vessel Name: Silver Quarter
Vessel Model: Bayliner 3870
Join Date: Sep 2016
Posts: 456
Thanks all. Was just curious why exhaust hose... as that's not necessarily adding a structural improvement, part of it is heat tolerance.

Also I'm not sure $8/foot is cheap there is a solid ~100ft of that stuff on here but agreed probably not a place to skimp.
kev_rm is offline   Reply With Quote
Old 12-10-2016, 10:04 AM   #7
Guru
 
twistedtree's Avatar
 
City: Gloucester, MA
Country: USA
Join Date: Jan 2013
Posts: 4,802
I think there are three basic characteristics of hose;

1) Heat resistance

2) Resistance to collapsing from suction, and from kinking when bent.

3) Physical durability.

For non-exhaust applications you don't need the heat resistance, but you generally need the other two characteristics.
__________________
www.MVTanglewood.com
twistedtree is online now   Reply With Quote
Old 12-10-2016, 10:37 AM   #8
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in Crisfield, MD
Country: USA
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 7,327
Trident sells two wire reinforced non exhaust hoses for raw water applications. They are less expensive and more bendable.

Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is online now   Reply With Quote
Old 12-10-2016, 10:42 AM   #9
Guru
 
HopCar's Avatar
 
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 4,303
The only reason to use wire reinforced hose (hard wall) is to prevent the hose from kinking when it makes a tight bend or to keep it from collapsing under suction.

You should avoid using hard wall hose if you can. It will fail sooner than an equal soft wall hose. The wire eventually rusts, expands and delaminates the hose. Always use soft wall hose if you can but sometimes you just have to use hard wall.
__________________
Parks Masterson
HopCar is offline   Reply With Quote
Old 12-10-2016, 12:02 PM   #10
Guru
 
psneeld's Avatar
 
City: AICW
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 19,415
There might be some confusion as to what is best.

I have seen trident wire reinforced hose crack and steel wire so corroded in such a short time that calling it I the best category might be misleading.

I have been replacing hoses for along time and many in my last 15 years working in the marine trades.....I would be hard pressed to say whether there is a best.

On the other hand, using unsuitab,e hose isn't the answer.

If some one here has ever tried reseal g the hose where the wire was cut, I would be interested if they say any appreciable results.

I have seen cheap automotI've hose last just as long....so I am skeptical of the concept that you are assured long life by brand or type of hose...but am curious to the offshoot findings of others.
psneeld is online now   Reply With Quote
Old 12-10-2016, 12:22 PM   #11
Senior Member
 
City: Wherever the boat is
Country: United States
Vessel Name: Silver Quarter
Vessel Model: Bayliner 3870
Join Date: Sep 2016
Posts: 456
Quote:
Originally Posted by HopCar View Post
The only reason to use wire reinforced hose (hard wall) is to prevent the hose from kinking when it makes a tight bend or to keep it from collapsing under suction.

You should avoid using hard wall hose if you can. It will fail sooner than an equal soft wall hose. The wire eventually rusts, expands and delaminates the hose. Always use soft wall hose if you can but sometimes you just have to use hard wall.
Ya the delamination is what I'm looking at now. Just at the ends but they need to be replaced. There are a few bits of silicone on the boat too but I think its about the same price and exhaust hose and main application for that material is high heat if I understand it correctly.

Any recommendations for a non-hardwall brand/model of hose?
__________________

kev_rm is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 09:54 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012