How to install a water system in a van conversion.
My Van Conversion

Water system

By on 4th September 2017

In this post, I’m going to briefly explain my water system and the installation in my van conversion. 

While living full-time in the van I am going to need water for loads of different uses such as cooking, cleaning, drinking and a shower.

 

This is the diagram of my water system setup.

How to install a water system in a van conversion.

Water system diagram.

Installation

1. Water tank

The tank I have is a  70 litre Fiamma tank, £65 off eBay.

I built the kitchen unit around the water tank for it to fit nicely and not take up much room as im limited for space. You can see how I did this in my other post Fitting kitchen unit and worktop.

How to install a water system in a van conversion.

70 litre Fiamma water tank.

 

Before the tank can be fixed in place, the inlet and outlet needed to be installed on the tank.

How to install a water system in a van conversion.

Cut the 20mm hole for water outlet fitting.

 

How to install a water system in a van conversion.

Water outlet fittings.

 

How to install a water system in a van conversion.

The water outlet installed on the side of the tank.

 

The water inlet is at the top of the tank.

How to install a water system in a van conversion.

Water inlet fittings. BSP male nipple, Threaded nut and threaded cap.

 

How to install a water system in a van conversion.

Water inlet at top of tank.

 

Once the inlet and outlet were fitted, the tank was fixed in place inside the kitchen unit. The fixings were provided with the tank.

How to install a water system in a van conversion.

Fixing the water tank to kitchen unit.

 

2. Water pump and accumulator

  • Trail King 20psi water pump £49.50 eBay. Used to pump the water from my tank to kitchen sink and instant hot water.
  • Fiamma water accumulator £23.98 eBay. Used to keep a smooth constant flow of water and extend the life the water pump.
How to install a water system in a van conversion.

Water pipe connects from water tank outlet to the water pump.

 

How to install a water system in a van conversion.

water pipe connects from tank outlet to pump.

  • The pipe is fixed down with plastic clips.
  • The pump and accumulator are screwed to the kitchen unit.

 

How to install a water system in a van conversion.

From the accumulator, a water pipe connects to the kitchen sink/tap and to the instant hot water tank.

 

 

3. Sink/tap

How to install a water system in a van conversion.

kitchen sink and tap

 

How to install a water system in a van conversion.

Kitchen tap fixed on the unit.

 

How to install a water system in a van conversion.

The flexible pipe from kitchen tap coming through the worktop to the underneath.

Hot and cold water pipe needs to be connected to the flexible pipe from the tap. The cold water pipe comes from the accumulator and the hot water pipe will come from the instant hot water tank, I will explain more about hot water in my next post.

To connect the hot and cold pipe to the flexible tap pipe I purchased a ½ inch BSP To 8mm Female Barb Hose Tail Fitting.

 

How to install a water system in a van conversion.

Tap flexible pipe and 1/2 BSP before fitting together.

How to install a water system in a van conversion.

Hot and cold water connects to the taps flexible pipe with a 1/2 inch BSP.

 

 

4. Waste water

The waste water from kitchen sink will go through a pipe under the van with a tap on the end to let the water out. I have a waste water container on my roof that I will bring down to use when to collect the water and dispose of, but most of the time I will just let the water go straight on to the ground.

 

How to install a water system in a van conversion.

32mm waste pipe connected to sink waste trap

 

I cut a 32mm hole in the floor for the pipe to go through to the underneath of the van.

 

How to install a water system in a van conversion.

Hole in the floor for waste pipe to go through.

 

How to install a water system in a van conversion.

The waste pipe going through the floor.

 

How to install a water system in a van conversion.

The waste pipe comes through the floor and sealed.

I sealed around the hole with black waterproof silicone.

I used a pipe reducer so the pipe could fit the waste trap.

 

Pipe reducer 32mm to 28mm.

 

How to install a water system in a van conversion.

pipe reducer with pipes connected with jubilee clips

 

How to install a water system in a van conversion.

waste trap connected to the pipes.

 

The waste pipe has a tap at the end to let the water out. I leave it open most of the time, but when in certain areas parked up ile dispose of the dirty water in a portable waste container. This is stored on the van roof when not in use.

 

How to install a water system in a van conversion.

At the end of the waste pipe, there is a tap connected.

 

How to install a water system in a van conversion.

Waste tap outlet.

The waste pipes are secured/fixed in place with cable ties. On the chassis of the van, there are some little holes in places that I could connect the ties too.

 

How to install a water system in a van conversion.

Cable ties holding the waste pipe in place.

 

This post has been a brief description of my water system in my van conversion and I really hope it has helped or inspired anyone reading this. Any questions please don’t be afraid to ask.


 

 

 

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3 Comments
  1. Reply

    Adam

    1st April 2018

    Exactly what I was looking for. Thank u for taking the time to document n post this. U have a new subscriber

  2. Reply

    Michæl

    29th March 2018

    Thanks for this ?? Really useful. Especially the diagram. What instant heater do you have? Gas?

    • Reply

      karl0svandango

      4th April 2018

      Hello there, i have a propex heater HS2000 and yes its gas.

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Karl Norton

I have converted a standard Ford Transit van into a campervan to travel and explore the world wherever my heart desires.

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