Waste tank drain down valves

[solaris]

The waste tank valve on my Kingham clips to the sill with a broom handle type sprung clip which is a bit fiddly to reaffix after use.
I’ve been looking for alternatives and found the attached photo in the November 2018 MMM. It looks like it’s fixed to a panel van. Does anyone know who makes it or who sells them? Thanks

 

[busby]

The waste tank valve on my Kingham clips to the sill with a broom handle type sprung clip which is a bit fiddly to reaffix after use.
I’ve been looking for alternatives and found the attached photo in the November 2018 MMM. It looks like it’s fixed to a panel van. Does anyone know who makes it or who sells them? Thanks

I have fitted a metal in line water tap to mine and fixed the end to van sill,,about a fiver.BUSBY.

 

[pappajohn]

Caravan accessory shop will have them.
Mainly used on caravans which don't have a grey water tank and use a water carrier instead... There won't be a tap.