Pond Repair Service

Stop wasting money and water

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Pond Repair Flow Form

“My pond doesn’t hold water”

We have heard the phrase many times. And more frequently than not, we have found that a lack of pond liner or damage in it is the reason. Our experience has taught us that while there’s a common conception of ponds as a dreamy place for relaxation, the reality can be very different. Often, ponds fulfill a specific function, whether it is to provide a water source for a farm, to keep the surrounding garden hydrated or to breed fish, most customers can’t afford a leaking pond for too long.  

Lonestar Minerals offers you a zero worries pond repair service. We value our people and our staff has been repairing ponds for over 20 years all over the country. We have repaired golf course lakes in Florida, ranch ponds in Texas, fishing ponds in Montana, stock ponds in Kentucky… We supply the materials, equipment, experience, and workforce. Trust our team to repair your pond and enjoy the results for long future years.

Repairing a pond with sodium bentonite
Repairing a pond with sodium bentonite

Benefits of bentonite clay sealant for pond repair

Sodium bentonite is a natural clay that swells up to 12 times its size. The bentonite is applied to the bottom of the pond and swells at contact with water, therefore creating a layer of compacted clay soil that will help hold water inside the pond. Unlike rubber or plastic liners, bentonite can fill any gap, slit or crevice, even around a tree root or a rock. One of its biggest advantages? No puncture risk. Sodium bentonite keeps your pond as close as possible to a natural environment. Being a 100% natural clay, you add to the ground a component that will blend perfectly into the pond’s ecology and give you an excellent result for a very low cost and a very long time.


  1. Effective – The sealing is very strong and long lasting
  2. 100% Natural – You won’t be adding any artificially produced materials to the soil.
  3. High quality mineral – Quality mineral help you you use less material and save money.
  4. Safe for life – Totally safe for stock, fish, wildlife, plants, swimming, etc.
  5. Resistant – Bentonite is an active liner that can repair small punctures by itself.


Its application isn’t complicated and, when done correctly it will create a seal that will prevent water seepage and leaks for years, even decades. It is absolutely safe for fish, ducks, plants, stock and wildlife, even for people. As an advantage, bentonite is a low cost material, mined and crushed to a certain grain size to serve as a pond liner. Finally, bentonite is very low maintenance, making your initial investment worth the while.

dry pond with out bentonite for ponds
Pond Repair Service

What we have to offer

At Lonestar Minerals we offer a turnkey pond repair service applying our expertise and using bentonite clay pond sealant. We supply the materials, equipment, experience, and workforce. The results? You will be able to enjoy having a full pond on your property for a long time.


Our Bentonite Pond Sealant Mix Mesh is unique and has been developed using our 50+ years of experience in the field. We are involved in mining our bentonite to milling and delivering a selected type and quality bentonite for your industry and application.


We pride ourselves in conducting our business with Integrity, providing truthful consultation services (yes, we will honestly tell you if bentonite is not the best solution for you) and operating under laws, legislation and policies. We value People, rather than things. Our main goal is to aid our customer’s success and to know our staff is proud to be working with us.

Tractor Working on Pond

Who do we serve

We are located in the state of Texas, therefore we are able to reach quickly any Texan cities. We are able to serve nearby states like Oklahoma, Nebraska, New Mexico, Colorado and Arkansas.


We have also had the pleasure of repairing golf course lakes in Florida and California and farm ponds in North Carolina, Tennessee, Kentucky, Missouri, Iowa, Idaho and Wyoming.


We have experience repairing ponds for:

  • Ranch Owners
  • Farmers
  • Homeowners
  • Businesses
  • Golf courses
  • Residential Communities
  • Municipalities
  • State governments

Our Clients are saying

Purchased 90,000 pounds of pond sealant bentonite. We applied to our pond as directed and achieved great results! Good service, friendly staff and highly recommended to everyone.

Joaquin Llaca

“Great service and advise from Art. Product worked just like he said. I will be purchasing again for another wild life pond”

Vasilios Nikopoulos



There are some other signs that your pond is leaking and needs a repair service. Besides the obvious sign of the water level lowering rapidly, you may find small puddles outside the edge of the pond. Or you may see plants that are not on season growing near the edges of the pond due to the wet underground. Another common case is purchasing a property that already has a pond, which doesn’t seem to be able to hold its water level. Figuring out how to repair a pond on your own can be challenging and stressful. Consider a pond repair service. Having an expert opinion can save you money and headaches in the long run. If you’re building a new pond, consider using bentonite as a pond liner.


We recommend applying the bentonite to a dry pond. It can be applied to a pond with water (wet application), but that introduces several more variables into the equation, and it may not be as effective as applying it to a dry pond.


Every liner has its advantages and disadvantages and, of course, there are several schools out there. We believe that passive pond liners are a good option for garden ponds (maybe two or three thousand square feet), but when it comes to farm ponds, ranch ponds or artificial lakes, bentonite is less prone to puncturing or degradation. In our experience, the initial investment is quite similar. Still, bentonite has the upper hand in the long term, with fewer maintenance costs and creating a natural pond ecosystem and not just a water retention tank.


Bentonite is a great pond sealant, but the effectiveness of the seal depends on the quality of the mineral and the correct application. Often, our customers ask if they can do it themselves. Our answer is always the same: if you haven’t done the deed before, we strongly encourage you to trust our expert team to help you figure out what the problem is and the best way to get your leaking pond repaired.


Our Bentonite Pond Sealant Mix Mesh is unique and has been developed using our 50+ years of experience in the field. We offer a select milled clay product for pond sealing that is a mix-mesh powder-granular product combining several mesh sizes, allowing the performance of this mix-mesh pond sealant to be superior to other similar products in the market.


The most important factor to determine the amount of bentonite pond sealer required is the type of soil of your pond. Depending on it is how much bentonite pond sealant we recommend applying per square foot.

Here are some reference values that can help you estimate the required amount of bentonite to seal any area (based on the Lonestar Minerals quality bentonite mix-mesh for ponds). Or, if you prefer, we have available a Bentonite calculator to easily approximate the amount of bentonite required for your pond.


Soil condition → Pond sealant per sqft
Rock or gravel → 3.0 to 3.5 lbs/sqft
Clean Sand → 2.5 to 3.5 lbs/sqft
Silty Sand → 2.0 to 2.5 lbs/sqft
Sandy Silt 20% Clay Min → 1.5 to 2.0 lbs/sqft
Clay Soil → 1.0 to 1.5 lbs/sqft

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Pond Repair Bottom Form
Current Pond State
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