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Old 11-16-2018, 12:43 AM   #1
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Best hose clamp for water pump fitting

I had issues with my Shurflow water pump and removed it and changed the head. I reinstalled it and now on my first trip out find the elbow fitting coming off the water pump is leaking at the base of the hose. It has a crimped clamp and I tried placing a small regular screw to tighten hose clamp above the crimped clamp. It only made it worse. Do you think if I remove the crimped clamp and move the screw to tighten clamp down it would work or try something else?
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Old 11-16-2018, 07:18 AM   #2
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Is the hose pex piping or the braided hose?
At any rate, the best clamp is to replace or re-crimp the clamp/ferrule.

Since I assume you don't have the proper crimper, remove the clamp/ferrule and get the proper sized screw clamp and clamp it. By the proper size clamp, get the smallest one that will fit around the hose. If it's too big it will distort the hose and barb and cause it to leak worse.

I also like to double clamp those connections and position the clamps 180 degrees from each other.
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Old 11-16-2018, 08:37 AM   #3
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Trim back end of hose just enough to have a smooth bore and you'll get much better results than if you just stuff it back on the barb and clamp it no matter what type of clamp you use. I like the ear, band or oetiker clamp best, you get 360 degrees of clamping force unlike screw clamps. But like Bama Rambler said most don't have the tool. Follow the 2x clamp suggestion and trim the hose, cross your fingers. If you have to take the band clamps off, try a Dremel and an abrasive cut-off disc.
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Old 11-16-2018, 10:06 PM   #4
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Quote:
Originally Posted by Bama Rambler View Post
Is the hose pex piping or the braided hose?
At any rate, the best clamp is to replace or re-crimp the clamp/ferrule.

Since I assume you don't have the proper crimper, remove the clamp/ferrule and get the proper sized screw clamp and clamp it. By the proper size clamp, get the smallest one that will fit around the hose. If it's too big it will distort the hose and barb and cause it to leak worse.

I also like to double clamp those connections and position the clamps 180 degrees from each other.
It's the braided hose in the photos
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Old 11-16-2018, 11:13 PM   #5
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You have to remove the old band clamp and place the screw clamp in it's place. The hose barb is not more than inch long and the way you have it in the picture the screw clamp is just barely on the hose barb, if at all, causing distortion of the hose.
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Old 11-16-2018, 11:35 PM   #6
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Only pex clamp rings or cinch are reliable, many hardware stores and big box stores rent crimpers out for a day if you dont have a pair. Gear clamps are a gamble at best for this. If it's too cold warm the hose ends in hot water to make them pliable and apply the clamp before it cools.
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Old 11-17-2018, 01:41 AM   #7
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Quote:
Originally Posted by Cypressloser View Post
Only pex clamp rings or cinch are reliable, many hardware stores and big box stores rent crimpers out for a day if you dont have a pair. Gear clamps are a gamble at best for this. If it's too cold warm the hose ends in hot water to make them pliable and apply the clamp before it cools.
Thanks, I am was up in Yosemite when this happened, now back home in warmer climate but will take your advice and warm it up. Thinking of getting some Oetiker clamps, does anyone know if the Harbor Freight end nipper tool will work or do I need a more expensive ones.
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Old 11-17-2018, 01:47 AM   #8
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No problem, the snippers work just fine. Oetiker clamps, cinch clamps, ear clamps - same clamp different name.
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Old 11-17-2018, 01:53 AM   #9
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Quote:
Originally Posted by Cypressloser View Post
Only pex clamp rings or cinch are reliable, many hardware stores and big box stores rent crimpers out for a day if you dont have a pair. Gear clamps are a gamble at best for this. If it's too cold warm the hose ends in hot water to make them pliable and apply the clamp before it cools.
What do you think was used for years with success before pex clamp rings or cinch rings were available. Stick the end of the hose in hot water to soften like you say and the gear clamp will be fine.

I have used gear clamps on steel braid reinforced hoses without a problem on the water hoses for a car shredder where the pressure ranges from 30psi to 100psi in a 1/2" nozzle and vibration is a 500 times worse than a RV. Take my word, it works as long as you don't tighten the gear clamp so much it strips the band.
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Old 11-17-2018, 02:07 AM   #10
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Quote:
Originally Posted by Scrapper View Post
What do you think was used for years with success before pex clamp rings or cinch rings were available. Stick the end of the hose in hot water to soften like you say and the gear clamp will be fine.


I have used gear clamps on steel braid reinforced hoses without a problem on the water hoses for a car shredder where the vibration and pressure (30 to 100psi in a 1/2" nozzle) is a 100x worse than a RV. Take my word, it works as long as you don't tighten the gear clamp so much it strips the band.

So have I for decades, I even used baling wire on air hose fittings, but what they sell nowadays at the hardware store is cheap chinese junk.
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