[Darran Pryce]

Guys, for those of you who use formula 90 as a pre spray,  what's your dilution rate to per 1ltr of water (1 scoop per 1ltre?

Cheers
Darran

[Shaun_Ashmore]

I don't think I have a formula it's dependant on soiling I am still playing with it even years after using it but I'd go with 1 scoop per 2 litres in warm water.

Shaun

[Mike Halliday]

If you are going to use it as prespray then I would just use what dilution you have I the tank , spray it down with your handtool and give it a scrub.

[John Kelly]

It should work fine at the standard 1 scoop per 10 litres.

[Darran Pryce]

Thanks chaps.  I'll still use acid rinse after the clean to make sure... especially on wool.

Anyone had any issues with it on wool?

[jim mca]

Don't waste your money on acid rinse it can't be neutralised

[Carpet Dawg]

only used f90 a few times as a pre-spray but 95% of the time as a rinse.

Use it on wool all the time, never a problem.

If doing textile that takes longer to dry (for example, Berber) and i've had to hit it with a higher ph pre-spray, then I'd tend to acid rinse instead to avoid potential browning probs.

[Russ Chadd]

Compared to just a normal water only rinse I would say F90 will give your cleaning a big boost when extracting... Don't rely in it to do all the cleaning though, been using Formula 321 as my pre spray and this achieved excellent results

[stuart_clark]

Formula 90 dosent need rinsing as it self neutralises and dries to a christaline powder like encap and just vacumes away, ive used the stuff since 1999 but my prefered chemspec powder is f70 by far



Stuart