You're obviously considering your image / advertising - Have you considered a uniform for work (you may already have this) e.g. embroidered polo shirts etc?
Spotless, we're the smartest window cleaners in Chepstow and I'm the best looking! We wear proper work wear trousers, and sign-written polo and fleeces. I shave every morning; so does Wor Lass.
Is this money cash, or is it a bank loan?
If it is the latter, I would stay as you are for now and build up the pot.
Dont forget at the end of Jan you will need to pay your Tax Bill.
It's cash and my tax bill is pretty much taken care of; but that's another thread.
I'm thinking of a 700ltr plus tank as I'm not sure where I'm going with things at the moment but I may end up employing
Ian_Giles suggested I should by the biggest and best I could afford. We'll see.
Are you in a soft water or hard water area as this could affect the answer. What is the TDS of tap water in your area?
I live in an 'ard water area; tap water around 170 TDS. I know what you're thinking though; if it was soft water, go DI and a 400 litre tank would be easy and quick to refill (I think).
This question is best answered by yourself Tosh. Etc...
Cheers, Trev; that's given me some food for thought.
Thanks guys; I just wanted to make sure I wasn't missing anything. 5K is a lot of money to me.
OK then. If you have 5k to invest, if it is possible I think you should borrow that much again at least and get a larger van with a van mount (more than 400 litres if possible), DI unit (polish as you use) and have a static tank with RO unit with transfer pump and hose. If it's not possible to set that up at your place maybe look around to rent somewhere.
I say use a bigger tank because once you start using a van mount for the tops and see how much faster it is than regularly filling a backpack, I have a hunch you will want to start using WFP on the ground floor too. With two of you using WFP, the minimum van tank is probably 650 litres and if possible, go for more.
I was astonished at first when I discovered that people used WFP on the ground floor work. Now I do it all the time. I did revert back to trad on the ground floor for a while when there were water supply issues here in the southeast but, on the whole, I find WFP much faster.
If you get a good setup large enough for yours and Wor Lass's needs, you will kick yourself for not having done it sooner. Once you have got on a roll, you will get through your work much more quickly and will have more time off or be able to take more work on.
However, without regularly stopping for backpack refills, you will get through a lot more water. Also, I suspect that in using a backpack, you are having the waterflow on a much lower setting than you would with van mount. This is why I suggest getting a much bigger tank. You could find yourselves restricted if you are both drawing from a 400 litre van mount - especially once you start WFPing the ground floor too.