25/03/2026
Avoiding Cracked Water Tanks: A Quick Note On Fittings
If you’ve spent any time researching water tank installs for campervan builds, you’ve probably come across a wide mix of advice on fittings – especially around threaded connections.
One thing we’ve noticed popping up more frequently is the recommendation to use tapered thread fittings directly in plastic water tanks. Please do not do this! It might seem like a snug, leak-proof solution at first, but it will cause problems. All our standard water tank outlets are parallel thread and tapered fittings are not compatible.
We have written a brief explanation here for more information.
As always, get in touch and we will be more than happy to talk through compatible fittings.
If you’ve spent any time researching water tank installs for campervan builds, you’ve probably come across a wide mix of advice on fittings – especially around threaded connections.
