Cleaning a cistern

Every now and then you need to clean your cistern and I was totally unsure how much mud and sand was in mine. All I knew was that the intake valve was often plugged after non use of my pump and the first bit of water was always dirty. The first year the system had no filter for water from the street so I thought it might be serious but there turned out to be less than an inch of mud. My intake valve is 4-5 inches above the bottom so how it got plugged I don't know.

I drained most of the last 5 inches with a bucket and then we lowered a neighbor in and he finished the job with a sponge, rags and a little cloro. I imagine with double filters the cistern will be good for 3-4 years now.

Entrance under the palapa

Yony inside partially cleaned

I just liked this foto

Pouring the marquesina

They poured it on Saturday starting about 9 and finished at 1pm. Rented a mixer and hired two neighbors to help. They dumped the cement on the ground and shoveled it in buckets because there were not enough guys to form a bucket brigade. The machine cost 250 pesos for 4 hours (they gave us no gas) and each of the workers paid 200 pesos each.

It will sit there with supports in place for almost 2 weeks. They will put a leveling finish on it soon. I've been watering it down a few times a day and I removed the cardboard tubes this morning.

Waiting for the cement to cure they are now working on four columns around my ugly cistern top that is over a foot above ground level because my last workers didn't measure the depth of the tank correctly. Hopefully there will be a palapa over it and a tile floor made from the extra house tiles. Just trying to make the outside more livable in our outdoor weather.

Actually finished but can't see from this angle

The first pour

Mixing the cement

Finished product

Water Filters

I forgot about the new water filters we put in last week. Our street water gets dirt/sand in it on a regular basis. Enough to clog shower heads and faucet screens, build up on the bottom of the cistern and stops one-way valves from working.

I've also decided we got too fancy with the valve system that automatically switches from street pressure to tinaco pressure so am going to try to remove them all and run direct lines. Too fancy because sometimes I have no water or my water is draining back to the street.

Week of rest and cleaning up - Week Eighteen

Three days of no workers because Chui took his kids to Guadalajara to visit family. I moved most of the rock pile that was partially buried from the cistern excavation and spread some dirt around. Finally hired a neighbor to move the heavier rocks and finish spreading dirt. I came back yesterday to rake it out.

Next week they should be finishing up the side wall and starting on the front where we need a large gate for vehicles, a people gate and an electric pole.

Lot from the street

Lot from the top of the back stairs

Cistern patio and walls - Week seventeen

The top of the cistern would have made a huge table but at only knee high we would have had to excavate for seating. Nope wasn't gonna work so I asked them to make a rectangle we could use it as a small patio - covered someday. Here they are blending the rectangle top with the circular one.

The bottom foto is the foundation for the lot sidewall. Just ordered another 1000 blocks for the front wall foundation and the septic tank.

Cistern patio from the corner of the lot

Sidewall foundation

Construction of small house in Pinal Villa, Costalegre

Week Sixteen - Installing the Cistern

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 walls for the cisterna

Mixing cement for the lid - before the extra ring of blocks were added

Cisterna installed and plumbed with lid sitting in the background

My Canadian neighbor putting in a Cisterna

Our neighbors have finally started work this year and began with lot clearing and a cisterna, aljibe or water storage tank. Lots of talk about how to do it, plastic or a cement box, both building a protection wall for the plastic or just put it in the ground. He decided to to do both with a block wall around. Also discussed if it should have a cement floor because the block enclosure can collect water during the rainy season. He opted for a cement floor - we'll see

Protection wall for the plastic cisterna

The plastic cistern