just seen on e.bay,   selling inline fuse connector,      when you see an item you know exactly how it works.    £3   free del.      just add a higher fuse,   when your not using these items yet , its a bit weary untill you can see how there set-up.         .i was like this when i was finding out how to set up to do pure water,    all the different parts of equipment to get ,   it just comes naturally now.
this will be the same when i get a van set-up,    hopefully to start in the new year.
going to get all the items i need,
it wont seem as so much if buying all togeather,
pump 
controller
battery,
battery charger
water tank tap,
ill purify water at home + transfer into water tank.
 ive got the tank