Hi Guys, I have been cleaning for around 8 months now and generally get excellent results. But one thing I have never been 100% sure about is how much pre-spray I should apply. Yesterday I cleaned around 45 sq metres of wool mix medium pile carpet, and I used approx 3 litres of pre-spray gold - would you guys say that this was about right?
Is there any 'rule of thumb' re: how many sq metres per litre for pre-spray?
Appreciate any guidance here - thanks Pete