RPE Liner Installations


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RPE Material Details


RPE stands for Reinforced Polyethylene. These geomembrane liners can be fabricated in massive pieces or they can be welded together to create liners for large water bodies to serve various purposes like retention ponds for new properties and developments. When you're dealing with a pond that exceeds 50' x 50' the weight of an EPDM liner can become prohibitive. EPDM (Ethylene Propylene Diene Monomer) is what we normally use in a koi pond. This material is thick, heavy, and feels similar but thicker than the rubber used for a bike's tire inner tube. RPE looks and feels more like a heavy, tight knit tarp or canvas. RPE liners range in thickness from about 20 mil to 40 mil. We tend to supply mid-range RPE because when dealing with spaces that are filled with water as opposed to heavy rocks or waste matter, 30 mil usually offers enough puncture resistance to do the job. If you were placing thousand pound boulders on the liner or had plans to fill it with logs or dead trees, you would want to go with the maximum weight. As a reference point, the 30 mil RPE variety has a puncture rating of about 700 pounds.

While RPE liners are reliable enough to be used for landfills and containment projects, we focus on installing them into large ponds that will not naturally hold water because of the Florida soil on that property. When dealing with a new bass pond, our team can dig the hole, install a geosynthetic liner, and even add aeration devices and live fish to your new pond. Read on to understand our process for using a RPE liner to start a new farm pond that will provide enjoyment and beauty for your family for years to come.


While centered in Tampa, we travel outside the area to more remote areas of Florida for pond digging projects. Counties such as Hernando, Pasco, Sumter, Lake, Polk, and Manatee tend to have more generous space than Hillsborough and Pinellas and are more ripe for designing a pond that can provide all kinds of enjoyment for your family.

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Questions to Consider Before Lining a Pond


  • There are many elements to consider when digging a new pond. Is your intended location for the pond at a low point or high point on your land? With the serious rains we get in Florida, having your pond in a low area can lead to flooding and erosion. If all the water runs toward your pond when it rains, it will be very easy for it to become overfilled. Where will the water go? If you're considering using a low point, you may want to plan on some kind of overflow system that diverts the water away from pond.


  • If you have a piece of land and are considering adding a fish pond, think about what size body of water you'd like. Consider how much dirt needs to come out to accomplish that and if you'll have a place on the property to distribute the dirt. We've heard of people using the dirt to build on, piled high and deep to create a backstop for shooting, or given away to a supplier that has the ability to sell the dirt. These are all good scenarios. If you can't use the dirt on the land you will have the added expense of having it hauled away and disposed of. Depending on the size of the pond you're digging, this can be a substantial portion of the budget for the pond.


  • Is the area/land level around the pond? Whenever possible, you want to have the sides of your pond be on an equal plane so that it holds water evenly. If one side is multiple feet lower than the other, as the pond fills up, the water will all exit in that one area and it may gravitate in a direction you'd rather not see it go. When we're designing and digging a pond basin, we'll use a transit level to check the corners and all sides to make sure we build up dirt in areas that are lower than others.


  • How do you plan to fill your pond? Some extra large bodies of water can take weeks to fill with a regular garden hose. If you have access to well water and a larger hose like a 1" or 2" diameter, you'll stand a much better chance of getting your fishing pond filled by your water source. Depending on the season, letting rain water fill a pond is also a great option. Are you near the water table? In this instance, your pond may not need a liner or be able to accept a liner if water is constantly filling from beneath the surface.

Any Landscape Can Benefit from a Pondless Fountain in Tampa


Not quite ready to make the plunge with a full waterfall feature? Lacking a lot of space in your yard for the disappearing waterfall you'd love to install? A smaller and less expensive option that many folks still enjoy are pondless fountains. Some landscaping and home goods stores sell large pots which include a bubbling water feature at the top. These can be self containing, fun to watch, and easy to set up. If you are looking for something a little more customized with a larger wow-factor and an ability to amplify the natural water sound, ask us about pondless fountains.


Similar to the out-of-the-box fountains, pondless versions create the appearance that the water is disappearing into the ground. Using the same technology as the pondless waterfalls use, a single foutain, three fountains or custom rock formation can be designed to sit on top of a bed of rocks that hide the water vault and pump which sends the water back up through fountain in a continuous cycle. Another cool idea is to hide one of these vaults right in the middle of your patio. If we were to remove a portion of your pavers, we could install the necessary equipment into the ground and place the rock formation of your choice on top of it to impress all of your guests. Imagine your back patio containing a fire pit on one side and a pondless fountain on the other. You may never want to leave.

Edge Treatment


After we dig a pond, but before we roll out the RPE liner, we'll dig a trench around the outer perimeter of the pond. Once the liner is unrolled and in the correct place, all the outside edges are dropped into this trench. Usually dug about 1' deep by 1' wide, dirt is added to the trench, on top of the liner edges. The dirt serves to anchor the liner in place so it doesn't move or slide into the pond once it is filled with thousands or even millions of gallons of water. Sod can be placed over the filled trench as well to solidify the land on top and make sure the liner is really secure.


Another method to get the same result is to dig a shelf around the outside of the pond. This could be shallower, like 6", but might extend a full 3' around the outside of the pond. Then sand, dirt, or gravel would be placed over that shelf to hold the liner and make sure it doesn't ever move.


In the best case scenario, the slope of the sides of your pond are gradual enough for fill dirt or rock to be stacked on them in order to cover and protect the liner. If this isn't the case and you have steeper sides, we can use a pipe as a curb that will hold some extra dirt or rock that will line the edges of the pond but not slide down into the bottom.


If we're building a weir or overflow pipe into your system, that will determine the maximum water height. Special consideration needs to be given to the path the water will take when your pond exceeds the max water level. This pipe will also need to be installed before the liner goes in, and then it will be wrapped around the pipe and secured on the edges to create a seal. Depending on the size and the conditions, a new pond with a liner could take several weeks to complete.

Added Protection by Burying Your Liner


All of the products we use and install come with a manufacturers warranty. They are usually listed as lasting a certain number of years when exposed (meaning to direct sunlight) and a far greater number of years when buried. While the cost to install and bury a liner is more expensive than leaving it exposed, it greatly lengthens the lifespan of your liner. Replacing a liner can cost nearly the same amount as installing a fresh one which is why we prefer to add a layer of dirt to a new liner when building a pond. 6"-12" of dirt is usually sufficient to cover the liner and help protect it from cracking due to prolonged sun exposure.


Caution and expertise is needed when burying large liners because the weight of heavy machinery can damage the liner making it unusable. Spreading dirt by hand may not be a realistic option when dealing with large ponds so we complete this work with equipment. Specifically, this can be executed by building a thick dirt road in the pond that will cover the liner and allow access to vehicles. From here, we can transport fill dirt into the pond and begin to cover larger sections of the liner using our equipment. As you can imagine, this process can be time consuming and is much easier to pull off during the dryer months in Florida.

Installation of Fish Pond Liners


Because of the weight of a RPE pond liner, the installation may require five or even ten people to help unroll the material and drag it into place. We can build a functional pond on your land with a totally turnkey process. We can supply the machinery and expertise to excavate a new pond, take measurements then procure the RPE material or any other liner membrane you may want, as well as supply and coordinate the labor to install and bury your pond liner. If you own land in Central Florida or you're looking at acquiring new land and would like a new body of water, we can visit the site and help you understand the options available based on space, location, conditions, and surrounding elements. There is a lot of planning involved in a project of this magnitude. Our understanding of pond construction can help save you headaches of trying to pull off such a large project by yourself.

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Need a pond liner installer? Call us now at   813-733-8832  for a free consultation!