Building a home in Mexico  
  Installing the cistern - Week sixteen

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Brought in a backhoe on Monday to dig the hole for the cistern (fresh water holding tank) and the ditch for the wall foundation on side of lot. The tank is 2800 liters and cost $4000 pesos (less than $300us). At the bottom of the pit is a cement floor with rebar. They decided to put in 3 castillos (support posts) to tie it together. The form for the top is made a few feet away, also rebar reinforced. We'll see how easy it is to move next week.

It was the first time these guys had installed a plastic cistern (usually just a block box) so the plumbing presented a few new problems. We had conversations about venting, where the pipes go and height of the top above the tank. They had no problem with pipes coming out the top - but the top will be part of a patio. I talked them into another ring of block so pipes exit the side.

Next day I brought out our plumber and he had us turn the tank around so the 1" fitting aimed at where the pump will be. He also mounted the street shutoff on the front wall of the lot, made a spicket for garden water and ran the line back to the cistern. We then waited 'till after 1 pm for city water to start flowing


Building the container wall for cistern

Mixing cement for the lid - before extra ring of block added
  Cisterna installed and plumbed with lid sitting in the background