REDSC400,
Your backflow issue is a good point, and I am going to revise my installation to incorporate a Universal
Oil input Adapter that has a built-in one-way check valve. I spoke with Canton (tel.203.481.9460) this morning and they faxed me Accusump's Installation & Operating instructions. You can use either an in-line "T" adapter and a one-way check valve or more simply, 1 1/4" Universal
Oil input Adapter sandwich between the filter and the remote filter adapter (part# #22-565 $55.00, see bottom right of page
http://www.cantonracingproducts.com/...ump_input.html ).
They also told me that as configured in my above illustration, the
oil filter itself would act as a one-way valve to some degree. However, I am going to go with the Universal Oil input Adapter sandwich for good measure.
I’ll later up-date and repost the diagram.
Thanks.