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Old 03-14-2019, 06:37 PM   #1
Fishsizzle
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Fresh water tank crack repair

Quote:
Originally Posted by Bnftravel View Post
Well after several days of searching and looking for repair tips for a cracked fresh water tank at the drain hole area I finally fixed it.
We have a 2017 keystone Bullet crossfire 2070bh.
Last season we noticed the fresh water holding tank was leaking.
First I was going to buy a new fresh water holding tank and decided to check into repairs and found that a electric plastic welder would work for this project.
My neighbor mentioned that he had one so I gave it a try and it worked out great.
It not only heated the plastic and sealed with the plastic rods it actually stiff and the bottom of the drain area and made it more solid and we no longer have a crack project took me approximately one hour to do.
I used a Mini-Weld Model 7 Airless Plastic Welder model #URE5700HT
If I didn’t have one I would’ve went out and purchased it for around $170 it is well worth every penny it will repair almost any plastic there is cracks holes whatever you need to fix this thing seems to do a great job I’m very pleased with it.
Some may say repairing freshwater holding tank’s won’t work but from what I’ve seen and what this little machine can do I beg to differ. I put about 15 to 18 gallons of water in it after the project was repaired and I have not had a drop of water leak out at all today so far so good will let everybody know down the road how I made out.
From what I read on purchasing a new tank was the issue with taking the old one out because of the straps being screwed in from the top side and the amount of time and effort it would’ve been would’ve needed to replace the tank this repair was a much better solution.
Happy campers in Bardstown Kentucky
That’s really cool! Congrats
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Old 03-16-2019, 07:00 AM   #2
Bnftravel
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Fresh water tank crack repair

Well after several days of searching and looking for repair tips for a cracked fresh water tank at the drain hole area I finally fixed it.
We have a 2017 keystone Bullet crossfire 2070bh.
Last season we noticed the fresh water holding tank was leaking.
First I was going to buy a new fresh water holding tank and decided to check into repairs and found that a electric plastic welder would work for this project.
My neighbor mentioned that he had one so I gave it a try and it worked out great.
It not only heated the plastic and sealed it with the plastic rods it actually stiffened the bottom of the drain area and made it more solid and we no longer have a crack. The project took me approximately one hour to do.
I used a Mini-Weld Model 7 Airless Plastic Welder model #URE5700HT
If I didn’t have one I would’ve went out and purchased it for around $170.00. It is well worth every penny and it will repair almost any plastic there is like cracks holes or whatever you need to fix that is plastic. This thing seems to do a great job and I’m very pleased with it.
Some may say repairing freshwater holding tank’s won’t work but from what I’ve seen and what this little machine can do I beg to differ. I put about 15 to 18 gallons of water in it after the crack was repaired and I have not had a drop of water leak out at all today. So far so good and will let everybody know down the road how I made out after a few trips.
From what I read on purchasing a new tank was the issue with taking the old one out because of the straps being screwed in from the top side and the amount of time and effort it would’ve been would’ve needed to replace the tank. This repair was a much better solution.
Happy campers in Kentucky
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Old 03-16-2019, 07:43 AM   #3
ADQ K9
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Quote:
Originally Posted by Bnftravel View Post
Well after several days of searching and looking for repair tips for a cracked fresh water tank at the drain hole area I finally fixed it.
We have a 2017 keystone Bullet crossfire 2070bh.
Last season we noticed the fresh water holding tank was leaking.
First I was going to buy a new fresh water holding tank and decided to check into repairs and found that a electric plastic welder would work for this project.
My neighbor mentioned that he had one so I gave it a try and it worked out great.
It not only heated the plastic and sealed it with the plastic rods it actually stiffened the bottom of the drain area and made it more solid and we no longer have a crack. The project took me approximately one hour to do.
I used a Mini-Weld Model 7 Airless Plastic Welder model #URE5700HT
If I didn’t have one I would’ve went out and purchased it for around $170.00. It is well worth every penny and it will repair almost any plastic there is like cracks holes or whatever you need to fix that is plastic. This thing seems to do a great job and I’m very pleased with it.
Some may say repairing freshwater holding tank’s won’t work but from what I’ve seen and what this little machine can do I beg to differ. I put about 15 to 18 gallons of water in it after the crack was repaired and I have not had a drop of water leak out at all today. So far so good and will let everybody know down the road how I made out after a few trips.
From what I read on purchasing a new tank was the issue with taking the old one out because of the straps being screwed in from the top side and the amount of time and effort it would’ve been would’ve needed to replace the tank. This repair was a much better solution.
Happy campers in Bardstown Kentucky
Thanks for sharing how can you not be happy in a place like Bardstown.

My under belly is enclosed and I have a piece of pex running out with a cap on it. if your set up is like this is there enough pex to cut and put a new valve on? Pictures would be helpful.
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Old 03-16-2019, 08:53 AM   #4
Bnftravel
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Pictures of repair

Here are a few pictures of the repair
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Old 03-16-2019, 11:42 AM   #5
ADQ K9
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Nice pictures are worth 1000 words when describing projects.
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Old 03-16-2019, 12:07 PM   #6
gearhead
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Very well done.
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Old 03-16-2019, 12:49 PM   #7
66joej
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Quote:
Originally Posted by Bnftravel View Post
Hear are a few pictures of the repair
Nice repair. Did your fresh water tank not have a nipple with a cap for draining?
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Old 03-16-2019, 02:38 PM   #8
Bnftravel
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Quote:
Originally Posted by 66joej View Post
Nice repair. Did your fresh water tank not have a nipple with a cap for draining?
Yes, I think we hit a higher bridge than the road over a creek or driving up to a road from a lower grass parking area and that is what I think cracked the tank outside the drain plug. The hard spout with the drain twist end was sticking down about 2 inches under the tank and it cought the road or bridge. I decided after the repair it would just be easier to put in a flat plug rather than a spout with en end cap. When we need to drain the tank I will just take the plug out.
ACTUALLY when do we really need to drain the tank? Just before Wintering. It’s only fresh water and can drain out on the ground.
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Old 03-16-2019, 03:30 PM   #9
JRTJH
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Our tank drains the same as yours, I installed a 90 degree elbow and a piece of half inch PEX with a 1/4 turn valve on the end. I routed it from the bottom of the tank to the back wall of the trailer where all I need to do to empty the FWT is reach behind the bumper and twist the valve. Easy mod and it's all tucked way up next to the trailer so it won't get damaged easily. I can't take any pictures now (can't get into the pole barn) but will in a couple weeks if needed.
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Old 03-16-2019, 03:37 PM   #10
Bnftravel
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Quote:
Originally Posted by JRTJH View Post
Our tank drains the same as yours, I installed a 90 degree elbow and a piece of half inch PEX with a 1/4 turn valve on the end. I routed it from the bottom of the tank to the back wall of the trailer where all I need to do to empty the FWT is reach behind the bumper and twist the valve. Easy mod and it's all tucked way up next to the trailer so it won't get damaged easily. I can't take any pictures now (can't get into the pole barn) but will in a couple weeks if needed.
Sounds like a great idea. Next time I’m at Lowes I’ll see what they have and may do that as well.
Thanks
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