See my blog at www.ronperrin.wordpress.com to see list of contaminats found in potable water tanks and video of water tank inspection with an ROV & diver cleaning.

This is a sample video that will show you a Video Ray ROV inspecting a clearwell, a diver inspecting a clearwell and then we will watch a diver cleaning a welded steel potable water ground storage tank.  (c) 2009 by Ron Perrin Water Technologies

Visit www.ronperrin.com for more information

or call   817-377-4899

Fax 817-246-1740

Diver inspecting underground clearwell

Cleaning these tanks and towers is important and often overlooked.  The photo below is from a July 2007 cleaning of a potable water storage tank.  This is public drinking water that goes straight to the tap.   With all of the other problems water utility directors face day to day thinking about having the floor of their storage tanks cleaned is often overlooked.  In addition in the past it has been a major disruption to water service.  The tanks would normally need to be taken out of service drained and then cleaned.  Buckets and shovels have often been the primary tools. Today, potable water dive crews can enter the water system wearing a dry suit that keeps the diver in his own environment away from the water.  They are able to vacuum the floor of the tank clean removing sediment that may contain or become a future breeding ground for harmful bacteria.  See www.ronperrin.com for more information.

How they do it:

Divers wear dry suits so no part of the man is in contact with the water in the system.  They are then washed down with a chlorin solution to be in compliance with State and AWWA regulations. Below a diver prepares to enter the water storage tank.