Herculan ConstaBoost™ for Well Water


Overcome very low pressure wells caused by undersized or intermittent water service, complicated or inadequate water treatment equipment, or wells and springs that are poor producers. If you have a low pressure well, don’t turn to a well driller; the ConstaBoost™ (Booster Pump System) may be all that you need to be able to enjoy a full pressure shower once again.

  • Easy to install – manual included
  • Fully automatic, ready-to-run system connects to your existing well pump and pressure tank.
  • Electric fill shut off with meter to set fill rate
  • Low water cut-off protects delivery pump
  • Delivers consistent pressure
  • Expand building or section of building using undersized water service
  • Deliver needed flow rate to intermittent uses from undersized lines & systems
  • Restore plumbing performance lost to undersized or elaborate water treatment
  • Restore full service to buildings with intermittent water supply. Works in open or closed systems
  • Provide retention time for treatment
  • Vented tank can be used for odor treatment
  • When used with low yield well, flow control on tank inlet prevents over pumping of well.
  • Use as local storage for a Distributed Storage System or Well Share
  • Tanks made of HDPE resin meeting FDA regulation 21 CFR 177.1520 © 3.1 & 3.2
  • Level controls meet NSF 61
  • Pipe & fittings meet NSF 61
  • Check & Cycle Stop of Low Lead Brass
  • Pump contains no brass


Often, a well of moderate yield is inadequate to supply the proper flow and pressure for the home connected to it. This is increasingly common as houses become larger and more elaborate. A well that was fine for a 2-bath rancher will not support a 6-bathroom modern home with all of the amenities. People moving from the city to the country are no longer willing to put up with the inadequate pressure or limited water supply that was once considered to be just part of the charm of country living.
In cases where flow pressure from a well is not adequate, a Herculan ConstaBoost™ Static Storage System can provide consistent pressure at intermittent flow rates many times higher than is currently possible without over pumping and damaging the well, without needing to call a well driller.


With this system, your existing well pressure tank remains as-is. The water line from the well tank to the house is plumbed into the ConstaBoost™ inlet, and the outlet is connected to your house plumbing through a Constant Pressure Module. For an installation drawing, click here.

The new, atmospheric (unpressurized) tank fills through a solenoid valve that is flow restricted to the well yield or less. Whenever the ConstaBoost™ is not full, water will enter at the set fill rate until the tank fills and the electric float turns off the solenoid valve that controls the fill line. In the case of a 2 gpm well, the fill rate for the ConstaBoost™ tank would be 2 gpm or less. Because the flow rate into the tank is restricted, a filter must be installed in the water line on the tank inlet so the restriction does not collect debris and reduce the fill rate.

Well pump start frequency and pump run duration depends on the draw down of the pressure tank you now have – or the one you select — and the delivery rate of your well pump. If you have a pressure tank, like the Well-X-Trol WX302 (26”D x 47”H), you can withdraw about 29 gallons before the well pump comes on if your pressure switch is running on a 30/50 cycle. It will take 14.5 minutes for 29 gallons to transfer from the well pressure tank to the ConstaBoost tank through a fill restricted to 2 gpm. While the ConstaBoost™ tank is filling, the well pump will come on every 14.5 minutes and withdraw 29 gallons from the well.

If your well pump can supply 7 gallons per minute to the pressure tank, it will run for 29÷7, or 4.14 minutes, each time it comes on.

This system includes a Constant Pressure Module so performance in the house will be exactly as it would be with a CP model Well Manager®. You will get a great shower and, if your home piping is sized by a recent plumbing code, you will be able to use two showers at the same time. Your days of no water pressure will be a distant memory. ConstaBoost™ static storage tanks are available in the same sizes as Well Managers, so you can store any amount of water you want.

When using a ConstaBoost™ Static Storage system on a low yield well, it is a good idea to install a low water cut off pressure switch, a PumpTec, or some kind of motor protection for the well pump. A Well Manager does not need this type of device. The ConstaBoost™ does have a low water cut off in its tank to protect the pressure pump if the tank is pumped too low.

The ConstaBoost™ Static Storage System is not as sophisticated as a Well Manager® , but it is attractively priced and will provide amazing plumbing performance. It will allow you to do things you cannot do now, and it comes with the same material warranties as a Well Manager®.


A Well Share can become a problem, particularly when well yield is barely or less than adequate. A running toilet, stuck stock tank fill, or loss of control at any outlet can result in an empty well and everyone left with no water.

If each home on the well share has a Herculan ConstaBoost™ (Booster Pump System) with the fill rate restricted to their share of the water, no one can empty the well. If a toilet runs at their house, their tank could be pumped empty, but the well will not be affected. Other users will still have water, and there will be water to refill the empty tank once the problem is fixed. The built-in water meter reveals abusers.

If others on the well share are not interested in an HCB, a single user can install one. The well can still be emptied by someone else’s negligence, but the family with the HCB will still have water long after everyone else has run out.


Community well systems may have many homes connected. Any well can be affected by drought or competition from other wells, so well yield can change. In addition, the peak demand need of the system can change depending on the number and age of people who live in the community and by changing times, causing the well to have low pressure.

Homes that are remodeled are likely to have water-saving toilets, faucets, and clothes washers, but there is also the possibility that the master bath shower will have body sprays and multiple shower heads. The net result could be a higher required peak demand flow rate, so a system that once provided adequate peak demand pressure may not be doing so now.

If well yield has been affected by increased development in the area or by drought, the well may be over pumped frequently. Over pumping can strain the well pump and damage the well, further diminishing its yield.

When an HCB System with restricted fill is installed in one of the homes on a Community Well System, strain on the system is reduced and system storage increases. If a 210-gallon HCB were installed in each of 15 houses on such a system, the result would add 3,150 gallons of distributed storage and 150 gallons per minute or more of peak demand delivery capacity.
In this way, it is possible to convert a Community Well System that cannot now meet peak demand flow requirements into one that can, even with the addition of several more homes!


Often plumbing performance is seriously degraded when several pieces of water treatment equipment are installed by a plumber. Sometimes it is because the equipment was not sized for the proper flow rate, and sometimes it is because the treatment cannot be done at high flow rates. A Herculan ConstaBoost™ (Booster Pump System) will restore plumbing performance when incoming flow rates are inadequate for any reason.

Many customers have used this equipment to save money on treatment equipment, knowing that the installation of an HCB system after the equipment would restore plumbing performance. For example, you can remove radon or arsenic with a 5 gpm system, or use a less expensive UV system installed on the inlet of an HCB, and you would still get 20 gpm peak demand flow rates at a constant pressure to the plumbing.

Whether you find yourself with no water or with unreliable, low pressure, don’t turn to a well driller or plumber. Well Manager has the solutions you need to get constant water pressure all day long.

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