so it`s best to connect both together into 1 hose and then connect to 1 of these?
http://cgi.ebay.co.uk/ws/eBayISAPI.d...3907&rd=1&rd=1

where would be the best place to connect,upper with a stack pipe inside,middle with a stack pipe,or near the bottom?

will i need them baffled or foam filled?

cheers
dave