Removing / grinding tree stump near pool lines

gmason86

Bronze Supporter
May 13, 2017
93
Ontario, Canada
Hi all,

I'm looking for some advice before we go ahead and get an existing tree stump removed (well, I gather they grind it and the roots down).

The pool was put in long before we moved in, and the tree was also cut down before we moved in. From what I gather, it was a very large tree (perhaps cedar or maple - not sure!). Unfortunately the stump was left though!

When we had a tree guy come out, he did question where some of the lines are, but unfortunately I don't know. He said that his worry was obviously the gas and electric first. However, I'm very confident they are nowhere near. His next worry is whether the tree roots have potentially wound round any pool lines over the years and the vibrations from the grinder (apparently it's over 2000lbs, so the vibrations are sizeable) could potentially damage pipes if roots are wound round them.

I've attached a picture, with a legend (very crudely drawn in paint!!), from what I know or have a reasonable assumption about. We had the gas line put in (it was previously an electric heater), so I know where that is. The original owner told me where the electric line is. I've highlighted the various jets around the pools, where the pump/filter are, etc. I've also included two little squares where I think I remember seeing some pipes & electric (for the lights) when the gas trench was dug. Roughly speaking, they were heading in the direction of the pool, but that was a very small insight. The original owner unfortunately does not remember for sure, but he thinks the lines probably went in roughly a straight line from behind the shed to the pool, and then probably wrapped around the perimeter of the pool to the jets/skimmer.

For reference, the width of the garden is approx 50ft. The distance from the centre of the stump (black bit) to the gas line is approx 12-13ft.


As far as timelines for tree, pool, tree cutting down, this is what I've been told for approximates:
- '86: Original owner moves in. Tree was already there and he said it was probably mostly at full size by then, maybe had a little more growing to do. No idea how long it was there before house built.
- Summer '88: pool dug and installed
- Approx '2012: tree cut down
- Spring 2015 - Gas line put in


I know that no one can tell me anything for sure, but I'm hoping for some insight as to what is the most likely place for the pool pipes and direction they'd take. If anyone has the time, feel free to overlay them on my picture please :)

And ultimately, does anyone have any thoughts on whether grinding the stump and the raised roots in that brown circle are likely to have any impact on any of my pool lines? We would really like rid of the stump so the garden will be more level for other purposes. However, I don't want to do it if I'm running a big risk of damaging pipes underground!

Looking forward to any thoughts!

Graham.


pool diagram.jpg
 
There are many methods to cut that stump down without having to grind it. Just google “How to cut a tree stump level with the ground”.
I have cut slices into some with a circular saw, soaked it in kerosene and burned it. Works like a charm.

~Rob
 
Practically speaking there will be a single trench in a strait line from where the all pipes go in the ground from the pump to the pool. That would more or less line up with where you green circle and pink squares are. The rest of the plumbing is directly around the pool. Trenching is expensive and messy and fittings underground are typically kept to a minimum to avoid potential for leaks.

It doesn't look like there is any logical reason for there to be water lines run anywhere near that tree. If it were me I would probably feel safe grinding that stump, but I would probably be nervous until it was over.
 
Thanks for the input all - it is certainly much appreciated!

We are going to go ahead with grinding it. However, like CJadamec said, I'll probably be nervous until it's done (or more accurately, until the pool is open for the season!!). That being said, turns out the guy we're going with has insurance that would cover any issues like that.

Looking forward to using my new test kit from TFTeskits! I live in Canada, but managed to pick one up on my recent trip down to Florida :)

Graham.
 
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