This may sound like a stupid queston and dont take the p**s :

if you are prespraying using an alkali prespray like enzall in a hyrdo force sprayer and you have say fibre and fabric rinse running thru the chemical flow on the tm, wont the two render each other useless??
i normanly only rinse using just water. i have used fibre and fabric rinse but only after i have finished prespraying but this can be a pain if you have a 5 bedroom house to clean. do any of you truckmounters use an acid rinse all the time even when spraying?
many thanks
luc