The BluePump is more easy to install than any other handpump. BluePump dealers provide training on demand as well as a quick update for local pump mecanics that are already familiar with the installation of other type of common handpumps such as Afridev and India M2.
PVC pipes, glue sockets and Bottom Support System (BSS)
The riser pipes of the BluePump are made of strong BOODE PVC pipes, which are connected to eachother with custom made PVC glue-sockets. PVC pipes are perfect for all types of groundwater, they are relatively light and easy to work with. However, when many PVC pipes are suspended in a borehole, due to the total weigt they will stretch up and down during pumping. With time this can cause small cracks and leaks. To overcome this problem, we have developed for the BluePump a "Bottom Support System (BSS). Over 800 BluePumps are installed with the BSS, it's now a proven technology that avoids PVC pipes to break.
The BluePump can therefore be installed in two ways:
1. Standard installation; with PVC pipes hanging on the T-piece.
2. Bottom Support installation; with PVC pipes all the way to the bottom.
In either way, the installation of the steel Blue box (35) parts and the handle (47) is the same.
1. Hanging pipes installation; conicals seat < 40m.
In case of shallow static water tables (less than 30m deep) the installation of the conical seat (3) the PVC rising mains (5) are “hanging” at a flange-socket (6).
- fix the base-plate (29) on the 6 anchor bolts (29),
- attach the rope (26) to the bottom of the CSP,
- lower the PVC pipes with the rope,
- glue the T-piece (6) to the last upper pipe,
- place the pedastal (35) over the T-piece,
- lower the cylinder (12 etc.) with the rods (22) into the riser pipes,
- when the cylinder locks in the conical seat,
- cut the rod at the level of the T-piece
- fit the handle (47) and connect the rods to the handle,
- fit the spout (34) to the T-piece,
- place the cap (41) and start pumping.
2. Bottom Support Installation >40m.
This procedure is the same as for the hanging pipes, only the beginning and the end is different. In a nutshell, the following steps are needed:
- Attach the rope (26) to the sump pipe (1) bottom plug (10)
- Proceed with adding more PVC pipes
- Glue the conical seat pipe (3 + 2) at the desired level, 15 m below the static water level
- Add more PVC pipes, until the bottom plug is at bottom of the borehole
- Cut the PVC pipe some 5cm above the baseplate (29)
- Glue the BS sleeve pipe (52) with the seal inside (53) inside the T-piece (6)
- Push the T-piece with the sleeve over the pipe in the borehole
- Do NOT glue the pipe in the borehole to the T-piece
- There is now a flexible connection between the T-piece and the rising main (5)
- Lower the cylinder with the rods inside the rising main
- Cut the rod at the level of the T-piece top (7)
- Place the steel box (35) over the T-piece and connect the handle
- Connect the handle to the rods
- Place the rubber absorbers (39, 55 and 44) on the upper and lower stop pipes
- Start test pumping and check if the water level in the T-piece is stable
- Close the cap (41) and the BluePump is ready for action.
- After a few days, check all nuts and bolts, re-tighten if needed.
Rehabilitation of abandoned handpumps with the BluePump
In Africa many handpumps are not functional. However, the (expensive) borehole is still usable. Therefore it is cost-effective to rehabilitate abandoned handpumps with the durable BluePump, which fits directly on the 4 bolts of the pedestal of old India or Afridev handpump. Rehabilitation is easy and fast.
Please note that old boreholes may have silt accumulated on the bottom and the PVC pipes may slowly sink 10 to 20 cm. in the first months. To compensate for this, the rods as well as the rising main need to be extended with the same length.