Scamp sink drain hose - Fiberglass RV
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Old 01-16-2017, 07:34 AM   #1
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Name: Bat Dude
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Scamp sink drain hose

Hi all,

Our sink has been on the "slow" side when draining lately.
I did "boil out" the trap with baking soda and vinegar, but the drain hose from sink to gray H2O tank may need to be cleaned. I thought it would be easier to simply replace the hose and a lot neater job as well.

We use a lot of organic coconut oil in cooking and do use loads of dish detergent and pour very hot water down the drain regularly.

It appears to be 1" OD clear flexible tubing and ~ 3' long. Only two standard hose clamps on each end and both readily accessible.

An Amazon search for tubing has not turned up anything with that diameter all smaller or larger. Camco lists one as an RV drain, however this is ribbed and not smooth and appears to be 1.25" dia.

Ideas?

Guess I can call Scamp Tuesday and see what they suggest or if they can send me a replacement.

Cheers,

Bat Dude
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Old 01-16-2017, 07:37 AM   #2
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Maybe look for hose used in a hot tub. I was at my local True Value, and there's reinforced hose that's white (not clear), but has a smooth inside. It's rated for hot water, which may help you since you're pouring hot water down the drain to keep it clear. I don't know the dimensions available though..

Good luck!
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Old 01-16-2017, 08:55 AM   #3
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Name: Ken
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I had the same problem slow drain. I found mine had a kink in it from the factory.
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Old 01-16-2017, 09:27 AM   #4
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I actually bought new drain hose in that size from Lowe's Home improvement. They had it on rolls in various sizes, labeled food grade, bpa free, and I just cut off the length I wanted. Maybe you could find it there?
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Old 01-16-2017, 09:54 AM   #5
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I think Emily is right. Compare with what you find in hardware store. When searching on line by size, it is probable that the size references are about the I.D., not the O.D.
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Old 01-16-2017, 10:27 AM   #6
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Quote:
Originally Posted by emij View Post
I actually bought new drain hose in that size from Lowe's Home improvement. They had it on rolls in various sizes, labeled food grade, bpa free, and I just cut off the length I wanted. Maybe you could find it there?
This is the best answer. ^^^^

I've replaced a number of hoses with what Lowe's has. When you get the hose removed, measure the barbed fitting it slips on to.

Standard dishwasher hose might fit. It is 7/8" ID and some brands are pliable enough to slip over a slightly larger fitting.
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Old 01-16-2017, 10:41 AM   #7
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Paul O. really gave you a good direction to go with about the I.D. (inside diameter) vs the O.D. (outside diameter). The only time the OD will come into play is when going through the cabinet wall between the sink cabinet and where the inlet is for the holding tank. But there one can make the hole smaller if it is to tight. While the ID is the controlling factor for the hose. If you need a 3/4 ID to fit over the sink drain and the inlet to the holding tank then anything else will not work, or work reliably. To small and nothing you do will make it go over the connector, to large and you face the real probability of the connection leaking, not something you want happening.

When I replaced my grey water tank I had to heat the hose ends to get them over the fittings. In hindsight a pex tubing expander would have made the task much easier.
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Old 01-16-2017, 01:36 PM   #8
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check the vent line from the gray tank. if you have stuff stored under the bench it could have crimped it.
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Old 01-16-2017, 02:42 PM   #9
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Would this work?

https://www.grainger.com/search?sear...+hose+1%22+O.D.
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Old 01-16-2017, 03:31 PM   #10
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If possible, check the flow with hose disconnected from holding tank. Good way to eliminate vent problem.
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