Products

The Premier Lake Weed Cutter

The Jenson Lake Mower™ is a cost-effective, environmentally friendly, mechanical aquatic weed control tool. The proven Jenson Lake Mower™ is the premier lake weed cutter on the market today. It can especially be useful during oil spill response situations where shoreline access may be covered with vegetation. Controlling milfoil, hydrilla, cattail, lily pads, and other aquatic weeds becomes a simple task with this electric lake weed cutter.

The Lake Mower™ lets you spend your time enjoying your lake, river or pond waterfront, not fighting it. Imagine using your small boat as an aquatic lake weed cutter and mower! It’s built to last, comes with a two-year warranty, and will give you years of service. Many of the first models ever built are still in service today, over two decades later. 

Accessories

Replacement Parts

Frequently Asked Questions

What Is Your Return Policy?

If a return is requested, refunds will be issued after the unit has been returned and inspection has been performed. The item should be in like-new condition packed in its original box. A 10% percent restocking fee will be applied to like-new, approved returns.

What Kind Of Warranty Does The Lake Mower Have?

The Lake Mower comes with a 12-month warranty. We know you will be delighted with the quality and performance of your new Lake Mower™ and/or the Jenson Rake™. For that reason, we invite you to try it out. If for any reason you are unhappy with it, you may return it within 30 days for a refund (less shipping & 10% restocking fee). If a return is requested, refunds will be issued after the unit has been returned and inspection has been performed. The item should be in like-new condition packed in its original box. We just ask that you call us first so that we can help arrange the return or perhaps resolve the problem that caused you to return it. Our Lake Mowers are high-quality machines built to last. Our first mowers have been in use since 1994. We like our customers to be happy with their machines for a long, long time. If ever there is a problem, don’t hesitate to call us. We stand behind our product and are always ready and willing to help resolve any problems that may occur.

How Fast Can I Mow?

You can mow approximately 1 acre every 3 hours. The time spent will depend on the type and density of the weeds, your boat motor, etc. We suggest cutting at a slow, steady pace to prevent any serious damage in the event you encounter an obstacle. Several of our customers use two Lake Mowers, one on each side of the boat, to cut a wider area in one pass.

How Often Do I Need To Mow?

Our customers report mowing 2 to 4 times per season. The rate of regrowth depends on the type of aquatic weeds, the temperature, the depth at which one is able to cut, etc. We’ve had some customers tell us their lily pads didn’t regrow at all after having kept them under the surface for a season!

How Do I Remove The Weeds Once I Have Cut Them?

It is important that the cuttings are removed from the water. Not only is it unsightly to leave them there, but large volumes of decomposing plant material can adversely affect the ecology. Additionally, certain plants, such as Eurasian Milfoil, can propagate from the fragments.

The cuttings are typically raked to shore, where they can be removed via nets or pitchforks. Since 2007 we have offered the 5′-wide boat-mounted Jenson Rake for purchase. This rake allows your boat to easily push the weeds to shore, saving time and energy!

Once on shore, the cuttings will shrink as they dry. Some aquatic weeds make excellent compost for gardens and flowerbeds!

Would I Need A Permit To Cut My Aquatic Weeds?

There are areas and specific weeds that require permits – too numerous for us to keep track of. Please check with your state DNR, the EPA, city or county officials, or local water authority before buying. In Texas, aquatic weeds fall under the Texas Parks and Wildlife Department, and one needs to submit a treatment proposal two weeks before cutting.

Could I Buy An Extender If I Needed One?

If you need to cut deeper than 3 feet, you can order either a 2-foot or a 4-foot extender at any time. The extender simply fits between the cutter head and the vertical drive shaft, and connects with 4 dog point setscrews at each end.

Will I Need To Order Additional Spare Parts?

Your Lake Mower will come with extra fuses, setscrews, and an Allen wrench (hex key) necessary for assembly. Occasionally our customers will drop a small part in the water. We recommend that assembly is always performed on land. However, if you should need a replacement part for any reason, simply call us and we can ship the part to you immediately. Due to the nature of cutting underwater, there is the potential of running into something solid, such as a rock, log, or man-made debris. If this should occur, the mounting bracket for the Lake Mower has been designed to break in such a way to prevent the Lake Mower from falling into the water and to prevent damage to your boat. Mounting brackets can be ordered complete or just the affected parts. Some of our customers prefer to purchase a spare mounting bracket to have on hand in the event that they need it.

The blades are extremely tough, self-sharpening agricultural blades that never need replacement.

What Type Of Battery Would I Need, And How Long Could I Operate The Lake Mower Before Needing To Recharge It?

You will need a 12V deep cycle marine battery (typically 100Ah or 120Ah), separate from the one your boat motor might be using. On a full charge, the HD5000 will run for approximately 7 hours. The RG2500 will run for approximately 10 hours. Keep in mind that you will need to recharge your battery. A helpful website to visit to learn more about different batteries and what they are suited for is Lifeline Batteries. There is a tab for Marine Batteries at the top, and you can select it to read an introduction to marine batteries, features, a comparison between different kinds of batteries, etc.

Can The Lake Mower Be Used In Salt Water?

Yes, one of our customers has successfully been using the Lake Mower commercially in saltwater for years.

Is There Any Way To Get A Demo Of This Device?

Please watch our videos at https://www.lakemower.com/videos. They should give you a pretty good idea of whether the Lake Mower can work for you.

For international orders, please call +1 (618) 382-2525 ext. 2781