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Rural Water Supply Operations Seminar
Rural Water Supply Operations Seminar

Water Supply Officer Seminar
Water Supply Officer Seminar

Relay Pumping With Large Diameter Hose
Relay Pumping With Large Diameter Hose

Dry Fire Hydrant Designs and Installations
Dry Fire Hydrant Designs and Installations

Suction Strainer Flow Test Project:Test Results

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 Welcome to the Official Website for GBW Associates, LLC.

    

GotBigWater is the official website of GBW Associates, LLC, a privately owned training, consulting, and design firm located in Westminster, Maryland. Our specialty is water supply for public and private fire protection. We at GBW Associates, LLC are known for our training programs, our consulting services, our dry hydrants, and our testing services. Over the years, we have completed projects in over 40 different states and Canada ranging from rural water supply and incident command seminars to ISO water supply assessments to community master planning.

Use the menu at the left to take a look at our services and to contact us.  Be sure to check out the News Archive and  Big Water Information sections for a whole bunch of information on water supply delivery operations.

 Scroll down to see our recent activities, upcoming events, and website updates.

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Be sure to join the Members Area to discuss water supply issues, view our document library, and receive announcement notices concerning our website and our services- it is FREE!

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Upcoming Seminars, Courses, and Drills

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We are now scheduling our Spring 2021 programs.  

 
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Dump tank ops....-23C.
Dump tank ops....-23C.

Hauling Water - Alberta Style - In the cold....

President Mark Davis, February 11

We have taught a number of water supply programs in Alberta and have always enjoyed working with the folks up that way. It is always interesting this time of year to see fire fighting operations in places much colder than Maryland. We borrowed all of the photos from our photographer friend William Vavrek and we borrowed event details from his Facebook entry (thanks for sharing). Anyway...-23C ... (Full Story & Photos)

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Tanker Operations #22 - Vacuum Tanker Off-Load - 100-ft of 5-inch LDH

President Mark Davis, January 28

During our 2-day Rural Water Supply Operations Seminar in Morrisvale, WV we tried out a couple of things using vacuum tankers. One of the "things" was off-loading water through 5-inch LDH by only the rig's vacuum pump. Because the vacuum tanker operates around 15 psi, there is limited pressure by which to push water through hose using only the vacuum/pressure feature....thus the importance of using ... (Full Story & Photos)

The 2000-gallon vacuum tanker off-loaded all of its water in 2.17-minutes for a rate of 922 gpm.
The 2000-gallon vacuum tanker off-loaded all of its water in 2.17-minutes for a rate of 922 gpm.

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3,000 feet of 4-inch hose and a 500 gpm pump.  (Rhode Island)
3,000 feet of 4-inch hose and a 500 gpm pump. (Rhode Island)

Water Supply Apparatus #3 - LDH Hose Reel Trucks - Massachusetts and Rhode Island

President Mark Davis, January 21

While digging through some photos from the Larry Davis Memorial Library we came across these two hose reel trucks from New England. The photos were taken quite a few years ago and we are not sure if Larry took them or not...but they were in his files so they must have been important to keep. The interesting point about both of the rigs is that neither started off with a hose reel....both were modified ... (Full Story & Photos)

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Dry Fire Hydrant Design #39 - Bridge-Mount - Clarendon, Vermont

President Mark Davis, January 14

Seems that we forgot to post this from back in 2017. We installed this bridge mount DFH on Walker Mountain Road in Clarendon, Vermont back in October 2017. The local FD took the opportunity to have one of our systems installed on a new bridge over the Clarendon River. Water was abundant and clean and the Town was willing to modify the bridge rail some in order to better accommodate the DFH's suction ... (Full Story & Photos)

Town officials modified the bridge rail so that the suction head would deploy at a usable height for a pumper's suction inlet.
Town officials modified the bridge rail so that the suction head would deploy at a usable height for a pumper's suction inlet.

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A different use for 5-inch LDH.
A different use for 5-inch LDH.

Dump Site Operations #22 - LDH in Lieu of Suction Hose

President Mark Davis, January 07

During our 2015 Rural Water Supply Operations Seminar in Kendall County, Texas we had the opportunity to see some 5-inch LDH being used with a TFT low level strainer in a jet siphon water transfer configuration. Our friends from the Bastrop FD showed folks how to make it work and it seemed to work just fine. Granted, it was 5-inch hose so the flow was probably less than a 6-inch hard suction hose, ... (Full Story & Photos)

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Dry Fire Hydrant Design #38 - Suction Head Choice

President Mark Davis, December 31

We sometimes get asked about suction head choice on our bridge mount dry fire hydrants. In general, we prefer using a male suction head with polymer cap because the head is stored in a "facing up" position to prevent condensation forming ice in colder weather. The two photos showing a female head in this news story were taken in December 2020 in the mid-Atlantic area and show just a small build-up ... (Full Story & Photos)

Ice formation from condensation can sometimes prove problematic when using female suction heads on dry fire hydrants.
Ice formation from condensation can sometimes prove problematic when using female suction heads on dry fire hydrants.

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No Caption Dry Fire Hydrant Design #37 - Strainer Installation Tip

President Mark Davis, December 24

Quite a bit of our work involves the evaluation of existing dry fire hydrants that have some problem. Often times the problem involves a damaged strainer and when that strainer is glued and part of a fixed installation....well, there is no easy way of making the repair...either drain the water source in order to access the strainer or send in a diver. The better choice is to plan accordingly ahead ... (Full Story & Photos)

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Dry Fire Hydrant Design #36 - Bridge Mount Installation - Bel Air, Maryland

President Mark Davis, December 17

Another one of our bridge mount dry fire hydrant installations that we completed this Fall in Harford County, MD....this time on Thomas Run Road in Bel Air. The lift was really high at this location and required 20-feet of pipe...which is the physical limit of our design. The installation used our saddle-mount bracket design and an ETT suction head and stream strainer. When flow tested using Darlington's ... (Full Story & Photos)

1,067 gpm at 19.5 feet of lift using a 1500 gpm pumper.
1,067 gpm at 19.5 feet of lift using a 1500 gpm pumper.

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Your questions and feedback are important to us!  If you have a question about water supply or pumps or FD stuff in general, join our Members area (for free) to post your inquiry. We will provide our thoughts and perhaps other folks in the field will provide theirs also. 

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