Update on the issues.....
I couldn't get hold of the battery lowing tool so i made one from a socket set. I cut grooves in the socket with the angle grinder to fit the shape of the screw... Works a treat
I went to get the Adapter for external gas point (to attach to my BBQ) but everywhere i tried said they dont stock them anymore as nobody purchased them due to the price! ... I will keep looking.
The leisure battery issue is now sorted.. There was a blown fuse but not in the fuse box! It was a fuse that was attached to the cab battery positive terminal. It apparently supplies power to the panel and from the alternator to the leisure battery... All is now charging perfectly and showing up on the panel .
The extra security lock on the garage door that was jammed is now perfect. I stripped it down and it was manky! It looks as though it has spent some time at the sea side as it was full of salt??!!
Digital TV is now working. The digital dish on the roof needed the power switching on! Ooppss..I didn't realise it had a power source?
I have now sorted the tank sensors... But i don't know what S3 is?
S1 is the fresh water, S2 is the waste water... What is S3? Is this just provision for an additional water tank?
The van is almost fault free... I just have a few more little tweaks left to sort.
Issue you may be able to help with... Where is the Fresh water drain valve? I have searched high and low and cannot find one. There is only the overflow pipe that comes out under the van?
I have traced the pipes and one set goes to the overflow and the other to the pump. From the pump it then goes to the isolator taps and then to the sink/shower. . No drain valve in sight???