[Slash]

I have recently purchased a 650 litre tank and cage and have been using it for the last three weeks,I noticed there was a leak coming from the outlet hole so thought it was the screw in tap fitting so bought another one,was still leaking so when I took the new one out I noticed a crack on the thread on the outlet hole,I rang the suppliers and they sent me out a fitting that screws into the outlet hole and will cut it's own thread beyond the outlet but there is only about 3mm of plastic if that after it.
The garage who fitted the tank and cage will charge me to take it back out and put it back in after I get a new tank or do I go with the fitting piece and hope it works but realisticly I can't see it lasting very long due to vibrations etc.
The tank is brand new and I did'nt expect this to happen so soon if at all as I am very carefull not to over tighten fittings.
I don't want the hassel of losing days work getting a new tank and getting my local garage to remove and replace the tank frame etc. but then again I spent alot of money on a new van,floor paint,the lot so don't want a cheap fix to only go wrong again in a few months or so,it might last years but personally I would give it a few months,does anybody else experience this problem with a crack in the outlet hole and how do you fix it,I've used silocon,PTYE tape but nothing works but the fitting will but I really dont think it will last due to the thin layer of plastic beyond the outlet hole.
Oh yeah...........Happy Christmas

[Pope vader]

put a pic up, as you might be able to seal with sealant and then screw in thread

[Spruce]

From what I can gather, the metal threaded insert has split and this is why water is leaking past the male connector.

The manafacturers have obviously experienced this before as I guess there must be many who in the past have overtightened tapered BSP threaded nipples and caused a similar result. (One of the WFP suppliers is selling a galvanised steel reducer with a tapered thread and ball valve which would be easy to overtighten. Even being too liberal with PTFE tape could also cause the problem.)

So I would suggest that you try the solution that the Manufacturers have offered. The connector shouldn't be under too much water pressure so the remaining 3mm of plastic and the threaded insert should be more than enough to secure the new fitting and stop the leak. I personally would try to get a tube of gasket sealer from your local motor factors and work it into the threads of both the insert and new fitting before putting the new fitting in. The object of doing this would be to try to get the gasket sealer to squeeze into the split threaded insert to seal it.

You will need to ensure the threads are dry, so you will have to empty the tank and then park the van on an uphill so the water remaining in the tank collects at the opposite end of the outlet.

Spruce  

[Peter Fogwill]

There is also the pipe repair putty available that you mix the two parts together.  This stuff sets rock hard and I am sure you can even apply it while the parts are wet.

Peter

[Pope vader]

there is a gutter sealent that will do that peter as well

[Slash]

From what I can gather, the metal threaded insert has split and this is whywater is leaking past the male connector.

The manafacturers have obviously experienced this before as I guess there must be many who in the past have overtightened tapered BSP threaded nipples and caused a similar result. (One of the WFP suppliers is selling a galvanised steel reducer with a tapered thread and ball valve which would be easy to overtighten. Even being too liberal with PTFE tape could also cause the problem.)

So I would suggest that you try the solution that the Manufacturers have offered. The connector shouldn't be under too much water pressure so the remaining 3mm of plastic and the threaded insert should be more than enough to secure the new fitting and stop the leak. I personally would try to get a tube of gasket sealer from your local motor factors and work it into the threads of both the insert and new fitting before putting the new fitting in. The object of doing this would be to try to get the gasket sealer to squeeze into the split threaded insert to seal it.

You will need to ensure the threads are dry, so you will have to empty the tank and then park the van on an uphill so the water remaining in the tank collects at the opposite end of the outlet.

Spruce 

Thats exactly what has happened but the supplier said that my case was only one of two that has had this happen,the tank is completly empty now and the threads are dry so will try some silicone sealant or a liquid PTYEwhich he did say to use

[spongebob]

Slash.
Reinsert the tap/male thread with 10 wraps of ptfe and some fernox lsx. Its a leak sealing silicone.Available most places including screwfix i think. Only a small toothpaste like tube for about £6.00. Will do the job for sure. Put plenty into the thread in the tank and leave it for about 2 hours before refilling.
Andy