I have a 700 litre pure2o (Ionics) system. Absolutely brilliant, never had any problems in 7 years.
I just got a new van, and I had the system moved from the old one. Still no problems. Highly recommend!
Ionics have a network of installers, so you don’t necessarily have to go Swindon if it’s not your nearest.
(And don’t bother with any system that isn’t crash-tested, you won’t be able to get insurance to drive it. Aquafactors, which used to be tucker pole U.K., are just plastic frames screwed to the floor. Death trap and uninsurable)
That bit in red is a falsehood.
If I was starting from scratch again I would without hesitation build my own system.
I have just renewed insurance THIS WEEK on my 13 year old van with its declared self built system.
This is just my opinion and thoughts.
We live in a world of change and uncertainty.
I can eventually see a move by insurance companies to tighten up on what tanks are fitted (crash tested) and how they are secured in the future.
IMHO, the only way for them to know is if they have been professionally made and fitted by a recognized supplier with certification.
(I can't believe that the manufacturing and supply wfp industry hasn't lobbied for this requirement with insurance companies, as it would be a money spinner.)
My 650 litre Wydale tank has a DIY welded tank copied from an old Purefreedom crash tested frame and DIY installed in my van with 6 HT bolts through the chassis and another 4 HT bolts through the floor with spacer plates. I also fitted additional steel braces to the frame. My insurance company asked me if the tank was professionally fitted when I joined them about 8 years ago. I said yes because I know what I'm doing, but if they had asked for proof, I couldn't supply that.
I did lots of welding in my youth in early South African days which proved to be very strong, but that wouldn't count in their eyes.
You had an accident with your van and your current tank setup didn't move. That's great. The tank proved to be correctly fitted and secured. But if the insurance company asked for proof that the tank is securely fitted now if it was a DIY fit, how can you prove that it is. Does past history count?
In my case, would DIY fitting a crash tested PF tank frame be acceptable. I can't think it would be.
Honestly, my remaining working life is now very short, so if my current insurance now requires proof my system is crash tested and fitted correctly in the next few years, I would have to ask myself if I needed the hassle and the expense of complying. You are also planning your retirement, so could face them same problem.
My first thought would be to look for an insurance company who would be happy with my system, but failing that, I would seriously have to consider throwing in the towel.
I honestly hope it doesn't come to this, but I also realize that something has to be done to stop all these cowboys with the improper secured tanks. A few in our area are still using 1000 litre IBC tanks held in with rope and/or ratchet straps secured to the van's load securing hooks in the floor. They seem oblivious to the danger, despite this accident and death of an employee working for Teesside Window Cleaning happening on our doorstep.