Holding tank - sources?

[N147JK]

I may need a new grey water tank. Was checking on them and I can't believe the prices.. $250 for a 10 gallon plastic box?! Anyone know where one can find these tanks for a reasonable price? - Thanks

[1der]

PM me with size and zip code. I might be able to save you some $$.

[N147JK]

Originally Posted by 1der

PM me with size and zip code. I might be able to save you some $$.

Thank you 1der. I'm still trying to rescue the one I have, but if it doesn't work out I'll contact you.

[1der]

What is wrong with the one you have?

[N147JK]

Originally Posted by 1der

What is wrong with the one you have?

Well, the drain fitting was broken when I bought the van. No big deal I thought, I'll fix it. Little did I know how difficult polyethylene is to work with. Spin weld - nope, don't have the tools. Heat gun weld - nope, plastic doesn't take to welding, made a big mess. Adhesive - maybe, but polyethylene is notoriously difficult to glue.

The spin-welded polyethylene tanks are great.. until there is a break - they are difficult to repair at home.

[kbeefy]

I just got one from ClassAcustoms . com. I thought it was very reasonable.
Available on Amazon but cheaper thru their website with free shipping.

[kbeefy]

https://www.classacustoms.com/10-Gal...Tank_p_12.html


$50

[1der]

Yep, welding PP requires a plastic welder. You can get one at Harbor Freight that will do the job. Spin welding - router with the proper bit.

So, the fitting itself was cracked down the threads because some one over tightened it?

One piece of advise for PP tank threaded fittings - DO NOT use the Teflon tape. That build up will put lots of pressure on the fitting. I use Rector Seal exclusively for those fittings.

Is there enough of the tank side fitting exposed that you could put a hose clamp around the perimeter? If so, a plastic weld on the outside of the fitting plus a hose clamp and Rector Seal on threads might just do the trick.

[N147JK]

Originally Posted by kbeefy

https://www.classacustoms.com/10-Gal...Tank_p_12.html


$50

Thanks - great price, but need different dimensions. Current tank is 30LX10WX9H.

[N147JK]

Originally Posted by 1der

Yep, welding PP requires a plastic welder. You can get one at Harbor Freight that will do the job.

Is there enough of the tank side fitting exposed that you could put a hose clamp around the perimeter?

I bought a welder and tried it. They will melt plastic, but melting two pieces of heavy plastic together (weld) is beyond what they can do. I just created a mess and lots of smoke!

I'm going with the rubber grommet as pictured. Superior I think because they seal well and are a bit flexible and will take a little shock. The spun-weld fittings are rigid - if they crack, break, or leak, they are very difficult to repair.

But I need to put a new piece of polyethene on the end of the tank so I get the right size hole. Thinking of trying the 3M DP8005. I don't like using glue for anything, but it might work.