Thanxs for the info & welcome!! Yes they both hum when i plugged
them in,..i haven't tried the canister w/ water yet,..both pumps say
Eheim with a model#1034,..canister also says Eheim Made in Germany
on it.
Also, you guys think one pump is for in and the other for out? Or
is one just a replacement pump? Trying to figure it out so i can
test this beast,...thanxs for all the help.