Irrigation

Dear All
 
This is maybe a little bit off the line of normal posts on this list but I would appreciate any help that anyone can offer.
 
I have the tenancy of a small house in Southern Portugal with about 5000 m2 of land, approx 2000 m2 of which has a variety of landscaping and planting. Prior to my moving here there had been quite a comprehensive irrigation system installed with a number of different delivery methods, drippers, micro-sprays, and a small turf area watered by pop-up sprinklers.
Our water comes from a private well but the water has a very high carbonate level and limescale deposits very readily, my main problem is the best way to maintain the system as far as cleaning etc.
I have replaced some of the smaller emitters on a like for like basis to correct some problems but to do this across the whole system would be uneconomical.
Can anyone offer ideas that I might try for system cleaning. The system has been a little bit neglected over the last couple of years and I would like to bring it back to a reasonable level of efficiency but because of my tenancy agreement I am unable to make major changes in the system so maintenance it has to be. Two of the turf sprays need to be replaced, must I dig... or is there an easy way.
 
 
Thanks to you all
 
Duncan Hill

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