Throw some dirt in to your hopper after you oil and it seems to help in the washout

I don't under stand I know my contractor would have a fit if he seen me throwing dirt in my hopper before a nice finish floor that he was going to pour. The mu

Yea I forgot about this trick. Works specialy well with the swing hopper. Put some sand in the corners. We've got a 300hr non-stop job comming up.. I think I will try this trick :-)

we did this years ago on the whiteman pumps these things were nightmares to washout , but I found it was easier to washout without the sand in the in the newer pumps unless its just a very long day , the sand tends to cause build up is what I have seen , if you have a hopper with large dead spots no doubt the sand or dirt will help.

if you have a non stop pour you wont need it, its the slow pours that ya need it

Its actualy quite unnessecary with al this buildup as long as you have the right design on the hopper. I used to drive an old schwing, must be 90s model. That hopper was so well designed I rarely had any buildup.. So its possible. If you have a lot of buildup in the hopper its a bad designed hopper period.....