I hope I don't get into trouble or this is seen as an advert but here are the questions that I asked. I have copied and pasted the email.
how much will the delivery charge be?
Delivery is included in the price.
If I wish to upgrade to a vanmount system later on, will it be possible just to buy the tank, etc. that I didn't get with the trolley system, and how much would that be likely to be?
Depends on what you want, pretty cheap if you don't upgrade the water treatment part.
You can use your pump box with the van system. 2x250L water tanks linked together + fittings is £200 a frame to secure them in your van is £250.
If I can get close enough to a job, am I right in thinking I could use this while still in the back of my estate instead of building up the trolley?
The trolley is put away with everything on it, you just unchain the handle and put a pin in place, it only take about 10 seconds to take it out the car and start using it.
I live in a hard water area, how much water will filters produce before needing to be replaced, and how much do they cost to replace?
The basic 200gpd system which is around 700L needs prefilters between 4 and 6 months at the cost of £15.00 for both, the DI resin used for polishing off to zero last about the same and costs £5.00. The RO membranes are the expensive part at £90.00 every 2 to 3 years.
I am very interested in this system as I am looking into getting into pole work, but I do not have enough of this work to justify a van mounted system yet. I see the trolley as a good starting point with a view to upgrading, hence the upgrade questions.
Most people with vans that start off with the trolley, have not bothered to upgrade as the trolley does everything a van system does.