Model # M3000
Dimensions 15" L x 12" W x 4" D
Pool Sentry™ M3000 Automatic Water Leveler – Garden Hose Powered
“Have your Pool on Alert while you Relax!”
Key Benefits
✅ Automatic Water Leveling — Keeps pool, spa, or pond at the proper water level without supervision
✅ Protects Equipment — Prevents pump burnout caused by low water level
✅ Portable & Easy to Use — No plumbing required, simply attach to a garden hose
✅ Peace of Mind — Perfect for vacations, rental homes, or unattended properties
Why Choose the Pool Sentry™?
✅ DIY Friendly — No tools needed; quick assembly and setup
✅ Complete Portability — Place in pool when needed, remove when not in use
✅ Versatile Applications — Works for pools, spas, ponds, or after maintenance (acid wash, leaks, etc.)
✅ Adjustable Float — Set to desired water height (typically halfway up tile line or skimmer)
Tech Tips
⚠️ Use a reinforced, heavy-duty garden hose — hose is under constant pressure during operation
✅ Fill the base with small rocks or pea gravel for stability in the pool
⚠️ Do not use with lightweight or worn hoses that may burst under pressure
✅ Adjust float carefully to maintain the desired level and prevent overfilling
Applications
✅ Residential pools and spas
✅ Rental/vacant properties needing unattended water level maintenance
✅ Ponds and water features
❌ Not designed for permanent in-line plumbing or commercial water-leveling systems
Specifications
✅ Model: Pool Sentry™ M3000
✅ Power Source: Standard garden hose (not included)
✅ Operation: Float-activated valve opens/closes water flow automatically
✅ Portability: Freestanding unit, no installation required
What’s Included
✅ Base housing
✅ Fill tube & float valve
✅ Top cover
❌ Garden hose (must be supplied by customer)
⚠️ Important: Always use a high-quality reinforced garden hose to avoid leaks or burst hoses during constant pressure use.
We have finally finished my pool deck renovations but we realized we have overlooked not installing a Levelor when we had the chance. We would love our pool to have a Levelor but don't want to crack up our deck again will this work?
Reply
The short answer is, definitely. This product is meant to be a no fuss solution to an issue that affects many pool owners. This product protects your pool filtering system from running dry which saves you money on equipment replacement plus no expensive install.
Reply
I have a Pool Sentry M-3000. Periodically it make a high pitch whinning noise when filling. It stops once the pool is full. How do I stop this noise other than turning it off at night ?
Reply
According to the manufacturer there are two options. You can turn down the water pressure going to the water filler. If that doesn't work, the other option is to replace the float valve assembly. Unfortunately we do not carry the float valve assembly because it costs as much as a new M-3000.
Reply
When setting the float to the desired water level, is it the bottom or top of the float that sets the desired water level?
Reply
Correct, Works like a float on a toilet. You can adjust the height you want it to shut off at.
Reply
Less than 1 hr
None
3 0
The Pool Sentry M3000 Automatic Water Filler was so easy.
It worked right out of the box, just adjust the water level with the turn of the knob to the setting you want and it was done.
No more always having to check the pool water level to make sure the pump isn't sucking air!
The Most Helpful Review
9 0
(5 out of 5 stars) Save your pump motor
Reviewed By: Charlie from Richmond VA ()
Pros: Simplicity reliability
Cons: Price
My pool is 30 years old and has a small leak in the plumbing. I do not want to dig up concrete to fix it. Pool Sentry lets me keep the filter running without checking the water level. It is beautifully "low tech". No electronics, no battery, just connect a garden hose. I agree with the manufacturer: use a good quality hose. Pool Sentry is a bit costly for a float valve, but inexpensive when compared to replacing a pump motor.
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The Most Recent Reviews
2 0
(5 out of 5 stars) I highly recommend The Pool Sentry- M3000 Automatic Water Filler
Reviewed By: Inyo Customer ()
This is a lifesaver. No more having my pool run low and the pump suck air.
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1 0
(5 out of 5 stars)
Reviewed By: Inyo Customer ()
Performed as advertised.
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5 0
(4 out of 5 stars)
Reviewed By: Alden C. from San Jose, CA ()
Pros: Easy to install once I got the orientation right.
Cons: none
Installed it last weekend. no problems so far.
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5 0
(5 out of 5 stars) Great Pool Filler
Reviewed By: Timothy L. from Calais, ME ()
Pros: Easy to hookup, keeps pool at correct level
Cons: Filler Hose can be in the way.
My Pool has a small leak that I cannot find. The auto-filler was efortless to hookup (about 5 mins ) and will extend the life of my pump by not letting the water level get to low.
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3 0
(5 out of 5 stars) works great
Reviewed By: Gail R. from Trona, CA ()
Pros: no more worries when not at home
Cons: NONE
this is wonderful and is working very very well with A.G. pool
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4 0
(5 out of 5 stars)
Reviewed By: Juan U. from El Centro, CA ()
In the 100 degree heat here in the Imperial Valley (Southern California)my 20+ year old pool has a slow leak, so keeping the water level up can be a challenge if we are out of town for a couple of days. the Pool Sentry is AWESOME!
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4 3
(2 out of 5 stars)
Reviewed By: Richard D. from Montgomery, AL ()
Pros: a needed capability
Cons: not sure it is durable
The plastic may not hold up to a hot summer. The device doesn't seem to be very sturdy.
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