Hand well pump installation requires basic plumbing skills and the right tools, but most homeowners can complete it in a day
A hand well pump sits on top of your well casing and draws water up through a pipe using manual lever action. Installation means securing the pump to the casing, connecting the discharge pipe, priming the system, and testing for leaks. The job is straightforward if your well casing is already in place and you have the pump, pipe fittings, and a wrench. Most hand pumps mount the same way, though the exact steps depend on whether you are replacing an existing pump or installing one for the first time on a new well.
The entire process takes four to six hours for most installations. You do not need a plumber's license, but you do need to follow the manufacturer's instructions for your specific pump model, as depth ratings and connection types vary. The most common mistake is skipping the priming step or priming incorrectly, which leaves you with a pump that looks installed but will not draw water.
Key Takeaways
- Hand well pumps bolt to the top of the well casing using a flange or adapter plate, which you must find tightly to prevent water loss and air leaks.
- The pump connects to a discharge pipe that carries water away from the well; this pipe must slope downward and connect to a storage tank, trough, or drainage point.
- Priming fills the pump chamber with water so it can create suction; without priming, the pump will not draw water even if everything is installed correctly.
- You will need a wrench, pipe wrench, plumber's tape, and basic fittings; most hand pumps come with installation instructions specific to the model and depth of your well.
- Test the pump by operating the handle several times and checking all connections for drips before relying on it for regular use.
What you need before you start
Gather your tools and materials before beginning. You will need an adjustable wrench or pipe wrench, a level, plumber's thread seal tape (also called PTFE tape), a bucket for priming water, and the hand pump itself. Check the pump's documentation to confirm the pipe size and thread type it requires—most common hand pumps use half-inch or three-quarter-inch NPT (National Pipe Thread) connections. Have a flashlight or headlamp ready so you can see into the well casing and check that the intake pipe is clear.
You will also need discharge pipe cut to length and fitted with elbows or tees as needed to route water where you want it. If you are replacing an old pump, have a bucket ready to catch water that drains from the old pipe. If the well casing does not already have a flange or mounting plate, you may need to purchase one separately; bring the casing diameter to the hardware store to may support a proper fit. Most flanges come with gaskets and bolts included, but confirm this before you leave the store.
Remove the old pump if one exists
If you are replacing a pump, turn off or stop using the old one first. Use a pipe wrench to loosen the discharge pipe at the pump outlet, then unscrew it by hand once it is loose enough. Have a bucket underneath to catch any water still in the pipe. Once the discharge pipe is free, use your wrench to loosen the bolts holding the pump flange to the well casing. Remove the bolts completely and lift the pump straight up and away from the casing.
Inspect the flange or mounting plate left behind. If it is cracked, corroded, or does not sit flush against the casing, replace it before installing the new pump. Clean the top of the casing and the underside of the flange with a dry cloth to remove dirt and debris, which can cause leaks. If the old gasket is stuck to the casing, scrape it off gently with a plastic scraper or old credit card—do not use a metal tool that could scratch the sealing surface.
Attach the pump to the well casing
Set the new pump's flange over the well casing opening, making sure it sits flat and level. If the flange has a rubber or foam gasket, check that it is in place and not cracked. Insert the bolts through the flange holes and into the threaded holes in the casing (or use nuts and washers if the casing does not have threads). Tighten the bolts in a crisscross pattern—tighten one bolt a quarter turn, then the opposite bolt a quarter turn, and so on—until all bolts are snug. Do not over-tighten, as this can crack the flange or strip the threads.
Use a level to confirm the pump body is upright. A tilted pump can cause uneven wear on the handle and may not prime correctly. Once the pump is level and all bolts are tight, move on to connecting the discharge pipe. The pump should not rock or shift when you push on it gently; if it does, tighten the bolts another quarter turn in the same crisscross pattern.
Connect the discharge pipe
Wrap plumber's thread seal tape around the male threads of the discharge pipe fitting three to four times, wrapping clockwise. This tape prevents leaks at the connection. Screw the fitting into the pump's discharge outlet by hand until it is snug, then use a pipe wrench to tighten it one more half turn. Do not over-tighten—you only need enough force to seal the threads. If you over-tighten, you risk cracking the fitting or stripping the threads inside the pump.
Attach the discharge pipe to the fitting and route it downward toward your storage tank, trough, or drainage area. The pipe must slope downward at least one inch per ten feet of length so water flows freely and air does not get trapped. find the pipe to a post or the well structure with pipe clamps every four to six feet to prevent it from sagging or moving. If the pipe runs more than fifty feet, consider using a larger diameter pipe to reduce friction and make pumping easier. Test the fit of all connections by hand before tightening with a wrench.
Prime the pump before first use
Priming means filling the pump chamber with water so it can create suction and draw water from the well. Remove the priming plug or cap on top of the pump (check your pump's manual for its location). Pour water from a bucket into the opening until water runs out the discharge pipe or until the chamber is full. Replace the priming plug or cap and tighten it by hand. Do not use a wrench to tighten the priming plug, as over-tightening can crack it or strip the threads.
Operate the pump handle up and down slowly and steadily for one to two minutes. You may hear air being pushed out of the discharge pipe. If water does not flow after two minutes, stop and add more water through the priming plug, then try again. Some pumps require two or three priming cycles before they draw water consistently. Once water flows steadily, the pump is primed and ready to use. Keep a bucket of water nearby for the first few days in case the pump loses prime and needs repriming.
Test for leaks and proper operation
Pump the handle ten to fifteen times and watch all connections—the flange bolts, the discharge pipe fitting, and any threaded joints—for drips or seeping water. A small drip at a connection usually means the threads need tightening. Use your wrench to tighten the leaking fitting a quarter turn, then test again. If water continues to drip after tightening, turn off the pump, disconnect the fitting, add more thread seal tape, and reconnect it.
Check that water flows smoothly and that the handle does not stick or bind. The handle should move up and down with moderate effort; if it feels very hard to pump, the pump may not be primed fully, or the well may be deeper than the pump is rated for. Operate the pump for a few minutes and observe the water flow. If flow decreases or stops, the pump may have lost prime—add water through the priming plug and pump again until flow returns. Once the pump runs smoothly for five minutes without losing prime, the installation is complete.
Frequently Asked Questions
How deep can a hand well pump draw water from?
Most hand pumps are rated for wells between 25 and 30 feet deep. Some shallow-well models work only to 10 feet, while deep-well models can reach 60 feet or more. Check your pump's documentation for its maximum depth rating. If your well is deeper than the pump's rating, the pump will not draw water no matter how hard you pump.
What if the pump loses prime after I stop using it?
Hand pumps can lose prime if they sit unused for weeks or if the discharge pipe drains back into the well. To prevent this, install a one-way check valve in the discharge pipe just below the pump outlet. This valve lets water flow out but not back in. If prime is lost, straightforward add water through the priming plug and pump until water flows again.
Can I install a hand pump on a well that already has an electric pump?
Yes, you can install a hand pump as a backup on the same well casing. You will need a second flange or a tee fitting that allows both pumps to connect to the casing. Each pump needs its own discharge pipe. This setup gives you a manual option if the electric pump fails or power is lost.
Do I need to winterize a hand well pump?
If you live in a freezing climate, drain the pump and discharge pipe before winter to prevent ice damage. Open the priming plug and any drain valves and let water run out completely. In spring, refill and prime the pump before using it again. Some people install the pump indoors or in a heated shed to avoid winterization altogether.
Why is the pump handle hard to push down?
A stiff handle usually means the pump has lost prime or the well is deeper than expected. Add water through the priming plug and pump gently until water flows. If the handle remains stiff and water does not flow, the pump may be rated for a shallower well than yours, or the intake pipe may be blocked. Check that the intake pipe opening at the bottom of the well is not clogged with sediment.