INSTALLATION TECHNIQUES

Here are some tips on getting the most out of the Secure Covers system.

When Gravel Bags are used in conjunction with Secure Covers, you're maximising the use of the Secure Covers system.

Secure Gravel Bags are specially designed to compliment the Secure Covers system. Their long cylindrical shape seals the edges of the stack or bunker and any overlaps of Secure Covers, preventing wind from lifting the covers up.

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As the Secure Covers are pulled taut over the silage, the Gravel Bags are placed around the edges, holding the covers in place.

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If you are placing multiple covers over your silage, the Gravel Bags run up and over the joins to prevent the wind picking them up.

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If tyres are used, their circular shape doesn't always ensure an airtight seal. Many customers make use of their excess tyres when they swap over to the complete system, like this farmer.

If you choose to do this, please make sure there are enough tyres, as we cant guarantee the system being airtight.

How to Use Secure Covers

Ensuring you get the most out of your feed.

Preparation

Start with a well-packed, smooth, domed bunker or stack. Low spots and insufficient packing require additional weight on top of the Secure Cover in order to reduce air pockets and spoilage.

Covering

Begin placing cover plastic over your silage (an underlayment product under the cover can also be used). Once enough plastic is pulled for a Secure Cover section, place the Secure Cover section on top. Make sure the plastic is tucked underneath the cover- this will prevent the wind from picking the plastic up and penetrating the silage underneath.

Securing

Pull the Secure Covers and plastic tight. Place Secure Gravel Bags end to end along ALL plastic and Secure Cover seams and around the perimeter, making sure each Secure Cover section is overlapping by about 0.8m

Extra Secure Gravel Bags or weight may need to be placed in any low spots and on the leading edge.

Re-tightening

​As your bunker or pile settles, it will be necessary to retighten the covers. This is easily done by walking around the outside edge and pulling up on the Secure Cover edges. The gravel bags will roll into the low spots and settle, keeping it tight.

Feeding out

Fold the Secure Cover sections back as you feed out. Keep a line of gravel bags along the front edge of the bunkers to prevent air from slipping underneath and move them back as you feed from the face. You must keep plastic trimmed back from the face. Not doing so can result in wind lifting the covers and plastic.

Storage

When you are finished with each Secure Cover section, fold and store clean sections out of the sun. Secure Covers come with a 7 year UV protection guarantee, proper storage when not in use will help to ensure your Secure Covers are up to the task, year in, year out.

How to fill the Secure Gravel Bags

Filling Material

Fill your Secure Gravel Bags with a smooth rock material; pea gravel/stone is recommended since it is less abrasive than other rock and allows water to flow freely through it.

Each bag takes roughly 14kgs worth of pebble, so 14 times how many bags you've ordered is the total kg amount of pebble you'll need to fill them.

Filling Method

A large, traffic-type cone will work as a funnel to fill your Secure Gravel Bags. Simply cut off the tip and flip it upside down. This size works well with the size of a standard shovel. If you are filling large volumes, contact your local dealer or distributor for ways to build a permanent funnel.

Insert Zip

Tie Each Secure Gravel Bag comes with a heavy duty UV resistant zip tie. Pre-punch a hole with a screwdriver or awl to slide the zip tie through the fabric. Poke one end of the zip tie through the gravel bag about 1/2" in from the side seam and about 6" down.

Filling Specifications

Each Secure Gravel Bag should be filled to a level approximately 3-4" below the zip tie position. Do not fill to the top. This extra space will allow the gravel to move and reduce pressure on the bag as it is dropped. Weigh the bags for consistency.

Tying

Once filled, wrap the zip tie around and close it. Tighten by hand only. Do not over tighten.

Our products are proudly Plasback approved!

You can now recycle your Secure Covers,

Gravel Bags and OXYFLEX.

Learn more about Plasback here.

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