Cobb is a GREAT company .Iv,e had White Magic and Hydramaster slide inns but Larry,s base unit has been more reliable than the others. I,m all Cobb including chemicals and save a lot of money using them. Iv,e had a few mix ups with orders.but they always make it right.The simple and easy and open design allows for no problems cleaning. Thank you Mikey,s board thats how i found all the info on Cobb jz.