Total Zone TZ - 8 / Commercial Ozone Generator System .

This unit needs repair. One of the four tube assembly is bad.

Maybe a new hour timer may not keep accurate time est. part cost $25.00

One new tube assembly est. part cost for tube $80.00.

The other three units work.

Note: This is not a toy replacement cost $2800.00 ( Commercial  ).

Safety and more information visit the links below.

http://www.internationalozone.com/

http://www.internationalozone.com/ozone_msds.pdf

Qualified personal should repair / operate this unit.