Winter Shut-Down/Layup
- Cooling tower systems that are shut down are highly susceptible to corrosion, fouling and microbiological growth.
- It is important to clean the cooling tower surfaces, control microbial activity and flush any
suspended solids during the shut-down process. - AMSA BCP® chemistry is a proven on-line cleaning chemistry that releases organic deposits from
surfaces and provides a powerful cleaning action in the cooling tower. In a well-controlled cooling
tower, dose 100 – 200 ppm of BCP® Chemistry into the cooling tower. Allow it to circulate ideally
for a 24 hour period. (Less circulation time will still allow for cleaning, but may not give optimal
results.) - A strong dose of a non-oxidizing biocide and/or biocide should be used following the clean-up dose
of BCP® chemistry to minimize bacteria in the cooling tower before shut-down. - Follow recommended shut-down procedures per the water treatment company that is servicing the
tower.
Spring Start-up
- During winter storage (wet or dry layup), conditions exist that initiate corrosion and mineral scale
- deposits along with biological growth. These deposits must be removed during startup.
- It is important to clean-out the debris and biological growth from the winter lay/up while you are
starting up the cooling tower. - AMSA BCP® chemistry is imperative to help mobilize the corrosion byproducts and debris in the
cooling tower to allow it to be cleaned. - Along with the water treatment service company’s recommended corrosion inhibitor package, dose
BCP® Chemistry at 100-200 ppm of product. - After the initial flush-out of the system as debris is suspended and removed, dose with oxidizing or a
non-oxidizing biocide to kill the bacteria in the system. - Once the cooling tower is cleaned and the water treatment service company’s start up procedures
are followed, a maintenance dose of the scale and corrosion inhibitor, organic deposit
cleaner/dispersant (BCP® chemistry) and a biocide program can be re-established
