Water Pump Holder
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Published on May 26, 2012
Description
This is a holder for a Whale GP1002 water pump and an optional liquid sensor. It keeps the pump upright, and the inlet as close to the bottom of the tank as possible, whilst leaving a small amount of water below it in attempt to leave any sediment behind.
This is part of a project to build a rainwater toilet, but may find uses elsewhere that these little pumps are used. The liquid sensor allows for the power to be switched off when there's no water available to pump.
The "water-pump-float-holder" variant is the same design, but with space to hold a Gentech LCS-01 horizontally mounted float switch.
This is part of a project to build a rainwater toilet, but may find uses elsewhere that these little pumps are used. The liquid sensor allows for the power to be switched off when there's no water available to pump.
The "water-pump-float-holder" variant is the same design, but with space to hold a Gentech LCS-01 horizontally mounted float switch.
Instructions
Printing: I used 0.2mm layers, 50mm/s print speed with 30% infill. Less infill is possible, although makes for a slightly bendable holder.
Once printed, there's a block with a 2mm hole for attaching one end of a liquid sensor (via a 3mm self-tapping screw). The liquid sensor I used was an Assemtech WS1. On the other side there's a hole for another screw to act as a grub screw to hold the pump in the holder. The power cable for the pump and the signal cable for the sensor can be cable-tied to the hose that will be attached to the pump.
Once assembled, the pump and sensor can be immersed in the water tank, and should maintain an optimum position to pump water upwards, hopefully without disturbing, or indeed sucking up too much sediment (if any builds up at the bottom of the tank).
If you find liquid sensors are unreliable in this environment (which mine proved to be very quickly), then use the "water-pump-float-holder" variant which will accommodate a horizontally mounted Gentech LCS-01 float switch.
This part was created as part of a project to fil our toilet with rainwater (and save up to 24% of our water bill). This part goes inside a water butt that collects and stores rainwater. The pump will push water up to a tank in our loft, which feeds water to the cistern on the toilet. The whole project is written up here: electronicsfordogs.com/articles/make-rainwater-toilet
Once printed, there's a block with a 2mm hole for attaching one end of a liquid sensor (via a 3mm self-tapping screw). The liquid sensor I used was an Assemtech WS1. On the other side there's a hole for another screw to act as a grub screw to hold the pump in the holder. The power cable for the pump and the signal cable for the sensor can be cable-tied to the hose that will be attached to the pump.
Once assembled, the pump and sensor can be immersed in the water tank, and should maintain an optimum position to pump water upwards, hopefully without disturbing, or indeed sucking up too much sediment (if any builds up at the bottom of the tank).
If you find liquid sensors are unreliable in this environment (which mine proved to be very quickly), then use the "water-pump-float-holder" variant which will accommodate a horizontally mounted Gentech LCS-01 float switch.
This part was created as part of a project to fil our toilet with rainwater (and save up to 24% of our water bill). This part goes inside a water butt that collects and stores rainwater. The pump will push water up to a tank in our loft, which feeds water to the cistern on the toilet. The whole project is written up here: electronicsfordogs.com/articles/make-rainwater-toilet
License
Water Pump Holder by electronicsfordogs is licensed under the Attribution - Creative Commons license.
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