UKTC Archive

RE: Swimming Pools

Subject: RE: Swimming Pools
From: David Evans
Date: Feb 10 2001 10:08:54
Hello Guy

Many, many, years ago, when I was doing it Down Under, I encountered a 
number of mortal encounters between indigenous trees and swimming pools.  I 
can particularly recall my first diagnosis which involved the death of a 
magnificent Lemon-scented Gum (Eucalyptus citriodora), that was the 
properties main feature tree located some distance from the swimming pool. 
 Initially, the symptoms were very puzzling - similar to road salt damage, 
which is not what might be expected in the height of summer in a 
Mediterranean climate - and it was only after some investigative work that 
is was established that the owners new maintenance man had been discharging 
the pool water within the root zone of tree.  Once discovered this abiotic 
causal agent was not uncommonly encountered.  When I left, swimming pool 
related damage was becoming increasingly common because of the rise in the 
popularity of salt water swimming pools.  A spectacularly fatal combination 
with drought conditions, water shortages, and a parched garden.

With regard to chlorinated swimming pool water, which is saline, I would be 
particularly concerned about it being discharged around Beech (Fagus 
sylvatica) and Sycamore (Acer pseudoplatanus), which are considered to be 
susceptible to soil salt damage.  The Lime (Tilia sp) susceptibility 
depends on which species you're dealing with.

Cheers

Acer ventura


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