The water dribbles instead of

Try running undiluted white vinegar in system to clear out any calcium deposits clogging the line, and check for loose connections or leaks in the waterline on the hose part. There also may be dry solution from the previous use and that will clog too try running only hot water through it as you should rinse carpet after you shampoo it to keep dirt from sticking to you carpet.

THAT SOUND LIKE IT'S CLOGED UP.