Frame: protection cover Installation (with velcro)


Protection cover, a non-woven fabric, is used to surround and cover up the base. There are five purposes for adding it:

  1. To prevent algae from growing inside the bottles, which may slow down the capillary phenomenon for uptaking water from the bottles. (Only the bottles at outer circle, which may expose to sunlight, have such issue.)
  2. To protect the bottles at outer circle from exposing to UV and prevent bottles from embrittlement. The bottles at inner circle do not have such issue.
  3. To beautify bottle setting.
  4. To reduce the speed of evaporation.
  5. To prevent fallen leaves from entering the covered area.

It is strongly recommended to put protection cover to prevent algae from growing onto water-uptake strip. (If there is algae on the strip, please take it out and wash/clean up and the water uptaking ability can be restored.) The life span of bottles at outer layer can also be lengthened.

Due to the protection cover is designed as full cover, and thus some of the bottles at outer circle are better be transparent at lower part of bottle body (strip off the plastic sheet from outside the bottle if necessary). The purpose of it is to allow us easy to observe the water level in the bottle. 

Taking 2 x 4 base plate set + 1×2 Frame50 set as an example to illustrate how to install the protection cover. For other size, please refer this one or contact us.

a. Do not put velcro onto base in raining days and be sure to keep it dry during installation.

b. The direction of staple should be parallel, which is easier to install.

Required materials

a. A piece of the protection cover at the size of perimeter plus 10 cm.

NOTE: Do not pull the cover too hard or it will extend and become thinner, and its sun block ability will then reduce.

The total length of two short sides is 100cm, equals to the length of two base plates with 50cm at each side.

The total length of two long sides is 200cm, equals to 4 base plates with 100cm at each side.

Total perimeter is thus 100cm+200cm=300cm.

The length of the protection cover thus needs to be 300+10=310cm.

b. Velcro (hook & loop side), scissors, stapler 

Cut both velcro hook and loop (one set) into pieces with length of 7cm each. 

Will need 18 sets, one set at every 25cm on perimeter,  4 at corners, 2 at both starting and ending points.

Staple velcro on the protection cover.

a. Velcros can not get wet, do not install them in rainy days.

b. Clean up the dusts on all sides of base plates and hands to ensure velcros’ stickiness.

c.  Keep the direction of staples horizontal although vertical way is also fine. Horizontal way is easier to staple. 

1.On the side of corner base plate please find a rectangle groove as a starting point for velcro. Stick hook velcro to base plate from this point. Tear off the paper from velcro carefully otherwise it may lose stickiness. After sticking hook velcro to base, please press it a little bit to make sure it has tightly attached to base.  

(NOTE: velcro cannot be higher than the base plate.) 

2. Opposite to the hook velcro position, staple horizontally loop velcro to the protection cover. (The loop velcro and fabric cannot be stuck together tightly and so need a staple.) 

3. Stick the loop side on protection cover to the hook side on base plate and press a little bit to ensure its attachment.

3. In addition to one piece of velcro every 25cm apart along the base side, velcro also has to be stuck to both sides of each base corner. 

In the photo below, red circles indicate the spots for velcro every 25cm apart; orange circle is the starting point and from right side go counter-clockwise; blue circles indicate corner spots for velcro at both sides of each corner.

The protection cover will overlap after going one round and returning to the starting point. Stick upper and lower cover together by velcro.


Staple top, mid-points, and bottom parts of the protection cover. 

Here is the portion where can easily be blown off by strong wind. It’s recommended to staple more. 

After finishing protection cover installation to the base, frames on the top can be installed now.  See Frame50: Installation or Frame25: installation.