they stopped making them for a reason, they are a problem waiting to happen. use a reg cylinder, you will be way better off. search for some of the instals tre5 has posted, he has posted a bunch of photos that will help you.
Check out the links at the bottom of my post. Click the facebook ones and you will see plenty of pics. Reverse flows are garbage, IMO. Let me know if I can help with anything. I own a parts company and install a ton of setups.