I belive it would be fine to soak it in the tub the make some awesome cleaners now a days ... like bleach ... if you soaked your wood say 2 mths . then took it out, presser wash it as often as you can while scrubbing it down with some sort of wire brush , or a heavy duty cleaning brisle brush .. pressurewash again & again .... fill the empty tub up with HOT water & add a whole contanier of bleach . then you can also get soft scrub with vleach , OMG that stuff WORKS , be careful and dont inhale too much of these chemicals def open up all the windows nearby and let the blaech /and /or softscrub sit soaking in the tub a few days, then wipe down with rag.towel . I THINK it shoudl be fine . now I am NOT positive ...
YOUR stump pc IS AWESOME !!!!!! I would def try to use it !! ~~~