I have just found a loop hole at my local car wash. At morrisons you have to pay for time on the jet wash, i.e 2 pounds is 10 minutes. Once paid you are given a ticket with a code, you enter this code and you get the minutes. Simple really.
BUT...
Morrisons in preston have TWO jet wash machines. The code you get is valid for 5 days and you can actually use this code on both machines, thus paying for 10 minutes and getting 20! Result! Not really a huge deal but I thought it was a money saving idea....and it worked!
The code will only work once so you need to drive to the 2nd jet wash machine to get the other 10 mins.
BUT...
Morrisons in preston have TWO jet wash machines. The code you get is valid for 5 days and you can actually use this code on both machines, thus paying for 10 minutes and getting 20! Result! Not really a huge deal but I thought it was a money saving idea....and it worked!
The code will only work once so you need to drive to the 2nd jet wash machine to get the other 10 mins.