Day Four of the Filter Replacement - Drum, UV and heater plumbed in and trenches being backfilled

Progress for the week so far had been good and the dry weather had definitely been on our side so far.

Thursday needed to be a big day for progress and it was. Craig on site at 6:30 started of by backfilling the trench that contained the water, power and two conduit pipes. This was heavy work with the soil was all back filled. The grass was then placed back on top like a jigsaw puzzle. It was handy that Craig had placed it in order on the tarpaulin so it was much easier to put back. The soil was stacked high because over the next few weeks it will compress down as we gradually tred it down.

 

Within the rear manhole cover we placed a T onto the water pipes so one could be kept for this side of the garden (the blue pipe out of the ground) and another would feed the filter house. Next the water and power cables were placed into the trench from the man cover at rear of the garden to the filter house. This was shortly followed by more backfilling of soil and now you would never know any work had been done (which is a positive!).

 

Within the filter house the focus was now onto the drum filter. Two 4" pipes were attached to the outlets and via some 4" to 3" converters connected into the two flow friend pumps. The end caps for the 3" spray bars were glued into place. Three rows of holes at one inch intervals were drilled into the 3" pipes to makes them into the sprays bars for the showers.

 

In a change to the original pond water feeds, we decided to utilise one of the 2" returns as an input into the UV --> heater --> return to the pond via one of the existing 2" return pipes. This had a couple of benefits because we could use what was already in place and also will assist with the water flow around the pond. The 2" input was connected to a ball valve, the into a 15k sequence and then via a ball valve into the UV. The UV pipework was then neatly cut along and out of the rear wall and into the 15k air source heat pump again via more ball valves. The outputs from the ASHP had another ball valve on the exit and then went back through the filter house wall and was connected to one of the original 2" pond returns.

 

Now all the drum had been fully plumbed in and the uv line was in place the pond refill started at 4pm. This was a huge milestone to reach and it is going to take a while to fill!

 

 

 

 

 

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