Hot Water Storage Tank - Reline
Today I want to show you a few images of a Hot Water Storage Tank recently relined by Provincial Tank Lining and Inspections. This HWST was located in Abbotsford, British Columbia.
When the lid was first removed, the tank lining appeared to be in fairly good condition. I want to highlight the word
appeared. Many people have looked in a large DHWST tank, assumed that the lining was still serving it's purpose and that the tank was protected based on the fact that the lining was still on the wall...this is not accurate. Based on the age of the tank (mid 1990's), we knew that the lining had surpassed it's servicing life. A typical servicing life for a cement lining is 12 to 15 years.
Once in the tank, our experience proved correct. Upon further inspection of the cement lining, there were noticeable areas of corrosion bleeding through the lining. At this stage, the steel vessel is no longer protected and the corrosion process has begun. This large capital investment has now been compromised. The good news is...Provincial Tank Lining has saved the day by refurbishing this particular DHWST for approximately 1/10th of the cost of replacement. This tank is now protected for another 12 - 15 years with regular anode replacement.
Initial View of the Tank: Notice the depleted thread-in anode to the right of the frame. Anodes protect unlined areas of the tank, the inlets and outlets. This anode is well passed it's servicing life.
Corroded Outlet and Debris: Notice the corrosion in the outlet due to the past servicing life of the sacrificial magnesium anode. Note the debris around the drain. The finer particles of debris can circulate throughout you entire water system contributing to pinhole leaks in your water pipes.
Corrosion Through the Cement Lining: This is evidence that the cement lining is no longer serving it's purpose and that the corrosion process has begun. If left unchecked, this would lead to unexpected downtime and unwanted expenses in repairs and replacement.
Exposing the Truth: This image exposes the truth behind the veil. In order to prevent unwanted downtime, repairs and expenses in the future...this tank had to be relined.
Corroded Manway Cover: The manway cover had areas of cement, that had cracked and fallen off, leaving the bare steel to the corrosive elements of hot water. The manway cover is a major component to the overall integrity of the Hot Water Storage Tank. It needed to be replaced.
New Manway Cover: This is the new manway cover. It has been prepped, relined and is now ready to be placed in service.
Prepped Inlet/Outlet: This inlet/outlet has been prepped down to the bare steel to ensure the best seal possible for the new cement lining.
Fresh Reline and Anodes: This is the freshly relined Domestic Hot Water Storage Tank. CSA certified, Pre-Krete T61 was the product used and is the industry standard. Note the two weld-in anodes replacing the deteriorated thread-in anode. This lining will protect the tank for another 12-15 years with regular anode replacement. Anodes require replacement every 2-3 years.
The blue lid ensures that this tank is now good to go!
Call Provincial Tank Lining and Inspections to schedule a free site visit by a qualified technician.
Regards,
Jason.
Jason Rusnak
Director of Business Development
Provincial Tank Lining and Inspections Inc.
C 519.387.2635
www.ProvTank.com
