I will be installing a Hayward/Goldline Aqua Logic PS4 and Turbo Cell over the next while and I will post my experience here in case others can find some info useful.
I am generally handy with electrical / plumbing but have never done any pool plumbing.

I am debating on the location / orientation of the cell. The cell is 12" long and the flow switch (4") needs 12" of striaght pipe before it (it can be installed right after the cell). Also I have 1 1/2 " pipe but the cell and flow switch are 2" so I will need adapters which will inrease the total length.

Here is my setup:
http://suprfile.com/get.php?id=7ly6n95
http://suprfile.com/get.php?id=7ly9u01
http://suprfile.com/get.php?id=7lyayc7

There is a T on the output of the heater splits to the step jets and the pool jets. Easiest would have been to put it on the pool jets side - the existing pipe is 11" - but even though I have flexible pipe at the end I don't think I have enough room to put the cell + pipe adapters + flow switch. I could get some elbows and go up with the cell then accross then down (like the AutoPilot).

Comments? / Suggestions?

P.S. For those who have not done any pool plumbing before - here is a good guide:
http://www.poolandspa.com/page819.htm#PVC%20Plumbing

Daren