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Rain Water Harvesting (RWH) in Texas and Hawaii

Here are five examples of Rain Water Harvesting systems that Momentum Bay has designed, procured and installed:

  • 200 gallons (four 50-gallon barrels daisy chained)
  • 2,200 gallons (eight 275-gallon IBC totes daisy chained)
  • 3,000 gallons (below-grade with bundles of black 4” perforated PVC pipe inside pond liner)
  • 6,000 gallons (two 3,000-gallon above-grade metal cisterns)
  • 12,000 gallons (four 3,000-gallon above-grade metal cisterns on engineered retaining wall)

Please note that Momentum Bay's geographic focus for rainwater harvesting general contractor services is limited to Texas and Hawaii.


To speak with Momentum Bay about purchasing your rainwater harvesting system, please call 281-451-3841 or email water [at] momentum bay [dot] com.



Favorite Memories

When you think about your best times in life, like your favorite childhood memories, what comes to mind?

When we've asked that question of families, friends, clients, even students in Momentum Bay's ECO [BOOT CAMP] courses, the vast majority -- nearly everyone describes times spent outdoors.

Vacationing, hiking, climbing, camping, boating, skiing, fishing, hunting, gardening, etc.

And, many of these memories are by the water.

Our founder Mark Robinson spent his first 14 summers building, fishing, and gardening with his grandparents on a lake in the Ozarks.


Diminishing Supplies. More Volatile and Catastrophic Rain Events.

What happens when those memories and our livelihood are threatened? For example, when Texas suffered a recent seven-year drought? When reservoirs dry up, crops die, and thousands of acres are engulfed in wildfires?

Or, when California - the grower of roughly 50 percent of our nation's edible crops - continues to be stricken by drought and wildfires?


Or, when we learn that energy and water are linked?

  • Energy uses Water: According to Michael E. Webber, PhD at University of Texas, who speaks about the energy-water nexus, power generation accounts for 2.5% of Texas water consumption and 43% of Texas water withdrawals. So, generating electricity yearly for a typical Texas home - 12,000 kilowatt-hours of site electricity - requires about 4,700 gallons of water.
  • Water uses Energy: Fifteen percent of all Texas' power generation is used to collect, produce, treat and distribute water. At a household level, annual indoor water is 40,000 gallons (newest homes) to 60,000 gallons (older homes). And, outdoor water use averages about 80,000 gallons per year, increasing substantially in newer homes and in cities with less precipitation. So, providing a household's water annually requires over 600,000 kWh of source electricity, or 17.5 times the electricity used onsite by an average single-family home each year.

Rising Water Costs and Prices

According to Circle of Blue, the price of water has surged 41 percent from 2010 to 2015.

USA Today's nationwide study showed how municipal water costs are getting more expensive.

Our founder has seen his family's monthly City of Houston water bills increase from $9 to $55 over 9 years, while keeping his house's conservative usage constant.

Why? Deferred maintenance by cities has caused aging wastewater and stormwater infrastructure to leak. For example, in 2013, the City of Houston wasted over 15 percent -- 1 out of every 6.5 gallons, a precious resource especially during a drought.

Turning Lemons Into Lemonade

To address these issues, the Texas Water Development Board created a $2 billion water plan.

The good news is that, while states struggle to implement plans, each of us can make a real difference affordably with rain water harvesting:

  • Start simply with one or more 50 to 65-gallon rain barrels to handle light garden watering.
  • Then, upgrade practically to one or multiple 275 or 330-gallon IBC totes and drip irrigation.
  • Or, graduate to more architectural metal cisterns with pressurized pumped irrigation.
  • Finally, if you're designing and building from scratch, you could store a year of non-potable and even drinking water below your home's driveway in a concrete vault.

In any of these ways, households and businesses can secure finances, reduce risks, improve occupant health, and even provide food security.


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