Pond Renovation, Part 1

Well, I have this 5'x3' pre-formed hard pond shape in the flower pond.  It has a shallow shelf around the edge and a deep spot in the center so it cant freeze.  I put in pots of Sweet Flag and waterlilies years ago.  It takes some maintenance.  And I'm not great at maintenance.

Every couple of years I just sort of forget about it and it gets a bit out of control.

Well, apparently, I set a record for ignoring it.  I mean, the plants grow, it rained enough to keep it filled naturally, and everything seemed OK.

Until I noticed that even after heavy rains, it wasn't staying filled.  So I refilled it with the garden hose.  The next day it looked dry again.  Oh damn, a leak!

So a few days ago, I decided to pull the individual potted plants out to find the leak.

Guess what?  I couldn't remove the individual potted plants.  They were intertwined.  In fact, as I discovered, the entire interior of the pond was nothing BUT roots,  and most of the plants were growing outside of the original pots!

I couldn't lift the mass of plants out the the pond.  But I have something called a "Digger Knife".  It is basically a dagger with a saw blade.  I started cutting pots out of the root mass. 

In 2 hours of hard work, I had 1/3 of the root mass removed and stopped for the day.  My work rule is 30 minutes max and 15 minutes relaxing.  I don't want to die stupidly.  I go inside to cool down and drink Gatorade.

I also wanted to save as many of the plants as possible.  Well, it really is amazing how many large containers you have around if you really search.  I found 4 and filled them up with water.  So as I cut one portion on plants loose, I stuck them in those until they were packed.  But as long as they have water, they are fine.

The next day, having many plants in water in containers, I got a bit more brutal.  I just kept cutting with the digger knife until I was down to about 1/3 the root mass.  I weighed myself in the  morning and later in the day.  I lost 3 pounds in sweat.  So I drank a lot more Gatorade, sat inside an hour and went back outside. 

THIS TIME, I was able to lift the preformed pond up and over, spilling the remaining root mass onto the lawn.  Whew, that was a great relief.  I now had the preformed pond loose and could look for a hole to repair.  And I couldn't find one.  The best way to look for a hole in something is to hold it up to the sunlight.  Nothing, nada, zip...  So I set the preform on the lawn and filled it up halfway (because it seemed to be leaking lower than that).

The next morning, the water level was exactly the same!  I was utterly baffled.  So I scooped out the water and poured it on plants (avoiding wasting water) and considered the shaped hole in the ground.  Well, it was never quite level, so I added some soil at the low end, and pounded in in removing the smallest bits of gravel.

So I put the pre-form back in place.  And refilled it.  It isn't "perfectly" level, but within 1/2" and that is good enough.  It used to be a bit tilted toward the back, so the front always looked a little empty.  Now the front always looks full.  Better.

Now I have to wait to see if it leaks again.  I put a stake at the spot where the water overflows.  If it is below that in 2 days (accounting for evaporation), I will drain it and decide whether to line the inside with plastic, scrub the outside and inside and paint it (inside and out with a water sealant, or replace it.

I have enough problems with some parts of the yard as it is (wild blackberries, english ivy, and poison ivy showing up everywhere).  I really didn't need this one.  But it was a very specific problem and I sort of needed that.

Those other problems come next.  I'm in activity-mode...