Fresh water tank leak

[debrey]

I have a leak on my water tank. It is at the fitting where the hose that goes to the water pump is connected. The fitting itself is cracked where it joins the tank. It appears to me the whole thing is molded.
Have any of you had this problem and could it be repaired ?

[glwinger]

May be possible to repair with this:
https://www.jbweld.com/collections/p...ld-epoxy-putty
The fresh water tank is most likely made of polyethylene. Not too many things stick to it, but this is rated for potable water tanks.

[greystroke]

Or you could try 3m Resin and some fiberglass. Made a lot of lasting repairs with this stuff. Go to the Bondo section of HD or Lowes.

[richard5933]

Best solution is to have a new fitting installed using a process called spin-welding. They can cap the old fitting and install the new in a matter of minutes. Might have to pull the tank to accomplish this.

If the leak is minor, you can also do the repair yourself. I've successfully done this by using a 25w soldering iron with a clean tip to slowly melt the surrounding material into the crack. Practice with some scrap plastic first, as you don't want to put an bigger hole in your tank by accident.

If the crack is not clean, you'll need to get it clean and dry first.

If the crack is too large to repair by just melting the surrounding area, you can add additional scrap plastic. First you'll need to determine if you have polyethylene or ABS. Search on YouTube and you'll see videos of all this. Just search for 'plastic welding'.

Using adhesives, caulking, or other types of glues are not likely to create a permanent fix if the tank is polyethylene. If you have ABS, there are solvent glues that might be able to help.

[debrey]

Thank you all for the input. I'll be looking into spin welding tomorrow. If I can't get that done I'll go with the "glue".

[Spoonsize]

I’ve no experience but I would ditto the solder iron idea.