well im new to all this too, and have decided to go the wfp route, but you allways end up with several need this and need thats, and a bigger bill!
but i think im pretty much there now, with everything i need.
for water you will need a 1000 litre ibc tank - best to store it all and fill up overnight.
i want to get as many customers as possible, so i went for a 300 gpd RO unit, reverse osmosis unit, and this is enough for me fills up the 1000 litre tank in 2 days. So you need a RO unit to filter the water, best with a TDS meter to measure the water purity. You most probably will need a DI vessel -
www.roman have some good ones, i have the 1400ml one which will do about 2000 litres before filling up again. and a bag of resin.
most Ro units have very small outlet hosing but this di vessel fits directly onto it.
you may need a pump if your tap pressure is low, to boost the water purification into your tank.
a Merlin Ro unit is recommended as this purifies more water faster, or on demand- abit more expensive but 700gpd. and the merlin has normal garden hose sized hose to fit straight onto the tap etc..
so for water its a RO unit/ DI vessel and resin, to complete the purification and a large tank to store it and fill up your vehicle tank or trolley containers.
might be a good idea to go to a set monthly price for water bills if your on a water meter.
all you need to do is have a hose from your outside tap, into the RO unit, the Ro unit has a waste outlet and product outlet, this goes into your di vessel, then into your storage tank.
you cant really build Wfp's yourself- best to get 2 or 3, if your doing residential work, 18ft fiberglass poles are good, from cleantech's website, or 25ft will reach most places, carbon fibre are more expensive but very light and strong.
the general way of having the systems is:
vehicle mounted- you have a large tank (to suit vehicle payload) mounted in the vehicle, with 100psi pump for pumping, varistream pump controller(this turns on and off the pump remotely to save water- it senses the pressure change when you shut the hose valve and turn the pump off until you turn on again, when you turn the tap off or disconnect your hose from the pole. a hose reel with about 30m for residential or 100m of 6mm or 8mm hosing minibore or microbore, and a auxillary battery to power the pump, in the vehicle.
then you simply reel out the hose to the furthest point of the customers property, and attach your pole/s for working.
or
have a trolley system/ home made or you can purchase a freedom trolley they are good apparently.
i have made a home made trolley system.
basically you would need a sack truck, you can weld or modify/ 100psi pump/varistream2/ a few meters of microbore/minibore
a 40 ah battery pack 12v
you have the battery and pump in a plastic box and a 25ltr container on top,
so you can walk around the trolley, and then ramp it into your vehicle for the next customer. then you can have either more 25ltr containers in your vehicle to simply swap over, or a large tank in your vehicle to quickly fill the trolley up again.
most people i think use the vehicle mounted system, i think i would prefer it now, but the trolley is fine too.
also as an additional thing some use a backpack which is basically a mini trolley system on your back, for a short pole or something, to get to areas with difficult access.
my fingers have had enough for now...
