I would like to hear if using mechanical tees on dry pipe systems is becoming 
common practice and if anyone knows of issues that have been encountered.

Also, in systems (wet or dry) that use hot dip galvanised pipe, where the hole 
is cut for a mech tee, have any issues corrosion issues been encountered if 
that cut surface is not provided with a protective coating?

Thanks in advance for your comments.

Nicky Marshall
Southern Regional Manager
PROTECH DESIGN LIMITED
Specialist Fire Protection Consultants
Phone: +64 (0)3 579 5577 extn 2  Mobile: +64 (0)21 433 488  Email: 
[email protected]<mailto:[email protected]>  Skype: 
nicky-marshall Web :www.protechdesign.co.nz
Address:105A Alabama Rd, Redwoodtown, Blenheim 7201, NZ Postal: PO Box 4022, 
Redwood Village, Blenheim 7242, NZ
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