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denis hodson
After reading many of you're advice columns i have decided to install a MSD system. I have looked at Sealand 975 MSD, Thetford 465 MSD and Thetford 365 MSD. I would like you're advice on which model to buy. Shoud i go with the Sealand which works on air pressure or the manual Thetford or the electric Thetford. Any guidance would be appreciated.