Pool of water at the bottom of the dishwasher after the cycle is complete

It is so easy and simple! Just removed the old part ( Piston and nut assembly), which is at the back of the dishwasher(inside, behind the spray arm and the heating coil) with bare hands. It needs a little push and turn , just like you removing a old stuck nut. One you remove the old nut assembly, replace it with new one. Just hand tightened is enough. Ran the dishwasher and voila...it works like a new one. No more water collection at the bottom! All it took is 10 mins + 12 dollar part + 7 dollar shipping.