Thursday 31 May 2012

Epoxy Drain Liner: Truth and Myths

Even cured-in-place-pipe (CIPP) lining of drain systems has taken over the globe industry for over 35 years, they are still relatively new to some Canadians. Several improvements have already been made within the field recently. General Manager of Absolute Draining and Plumbing Andrew Mokrivsky analyzes some of the advancements, as well as demystifies some of the myths.

Cured-in-place-pipe (CIPP) lining is the typical name given to the insertion of a resin soaked liner (tube) right into a ruined pipe and curing it in place to create a new structural pipe inside a pipe.

The installation procedure may be accomplished by using different procedures which includes pull-in or inversion using air or water pressure. The curing of the resin can be carried out applying steam, hot water, UV light but there are some resins that may cure under ambient conditions.

Liner construction has also become unbelievably advanced with a variety of materials out there, from standard polyester tubes to fibreglass reinforced tubes.

Lining resins have progressed significantly in the past 35 years with products being specifically created and verified for the pipe rehabilitation market. Then again, it is critical that the tube/resin combination be thoroughly tested. This is exactly why Absolute Draining and Plumbing developed proprietary trenchless drain repair technique and produces its own liners.

Despite the above progress, a variety of myths stay alive in the business regarding to CIPP liners.

Myth 1: All liners are identical

while there are several conceptual similarities in between systems, it is clear through the information above that a many options are present to accommodate various site conditions and problems. Just about every liner has its own specific installation process and finished properties.

Myth 2: Liners are not to be put in where there is infiltration

“Lining manufactured by Absolute Draining and Plumbing is quite strong when it comes to installation under infiltration circumstances," said Andrew Mokrivsky, "Over the last 10 years, we have not only worked on the improvement of our products and systems, but also we have developed reliable method to allow us to install all of our liners under complicated circumstances. Our capabilities are well proven on projects in the Toronto and GTA. Once installed, liners have been proven to be the most efficient choice that modern plumbing industry can offer in relation to reducing or eliminating further infiltration into the lined pipe because of the tight fit nature of the finished product and the migration of resin into pipe defects.

Myth 3: Liners cannot be installed in broken pipes

CIPP liners are remarkably versatile for any rehabilitation of defective pipes because they are placed in a flexible state just before curing. Which means the liners can work out substantial issues, for example holes or missing sections, and are notably favourable when addressing large joint displacements or pipe bends/deflections, which can be common where ground movement has occurred. After the liner is inflated/pressurized positioned, it's the added good thing about supporting the pipe during curing to limit the risk of further pipe collapse.

Final thoughts

To summarize, CIPP liners have come a considerable ways since their invention roughly 40 years ago and remain most likely the most widely used and tested pipe rehabilitation product.

5 comments:

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