Looking for advice using walk behinds.

Last night I found this great forum and read as many posts as I could consume. Thanks :)

As a janitorial company we don't do carpets as a primary business but just on what our current customers require/need. So as much as I think after reading all the posts that a truck mount would be great, the return on profit would be 10 years into the future. I would love to sub carpets out, but security is an issue and there's not much headroom for costs to do that.

So maybe you guys can help me with what I already have which is an Advance Aqua clean 18 and a Clarke Image 16i. I can't say after reading most of the posts that I came across anyone else owning these so I feel disadvantaged right out of the gate :P Seems like people here own everything but what a 'big' manufacturer sells.

Anyway, my biggest problem is I lack the experience since we do carpets so infrequently and one of the newer accounts we have has miles of carpet which people like to spill things on and I'm getting a lot of stains that go away initially, but pop back up a week or two later.

Can you guys recommend a general purpose chemical that works well with a walk behind extractor for pre-spray and for extraction? I realize I also really need a few more chemicals for spot removal so to that end are there any kits available that covers most stains?

Thanks a lot and any information would be greatly appreciated

You can run hoses off walk behinds. Do 25'. I had a NSS walkbehind many moons ago

 I agree

Take it up stairs then you will see