I live in the South East near the South Downs so hence the water round here is very hard. I use a snow foam lance on both mine and my wife's car when washing them. However having had to clean it out once before with a descaler solution I wondered if anyone had any better ideas to get the guns passages clear again.
When I use it I always rinse it through with clean water and I have a descaler on the incoming supply to the house so the hose makes use of this too. When I used the de scaler before I know it is some form of acidic product so once finished I rinsed it thoroughly and then run a few mixes of shampoo though it over the drive before the output went near either of our cars. I would be interested to get peoples thoughts on this as it is once again getting to the stage where it needs de clogging.
Thanks in advance,