I'm digging a trench under the landscaping block perimeter of my landscaping boxes so that I can install csst flexible natural gas line inside of 1.5" pvc to a few (now propane) gas appliances.
I bought fittings to adapt the propane appliances to natural gas. I'm bypassing the fire bowl table's line entirely and connecting a natural gas diaphram + line for a grill directly to the burner.
The fire bowl columns are a simple design. I'm just piping a natural gas diaphragm + line directly to their small grill propane bottle connection.
I'm not bypassing the fire column's propane diaphragm so will see how those work out. I don't think I can bypass the connector to get to their burners but if I have to I'll figure something out later.

I'm also going to run a rubber garden hose in the same trench with the outdoor 'fake rock' 100w speaker's outdoor speaker wire in the hose. One speaker in each corner of patio.
Finally I will be running a heavy gauge 3.5mm cable from my basement surround system out of a basement window in my mudroom/breezeway.
I'll connect my stereo bluetooth speaker to the 3.5mm jack as a transmitter from my tablet or phone wirelessly via bluetooth so I can run pandora, etc and control it outside.
I already have a WAP inside a basement window frame close to the patio.

 

 

Old pic before fence was stained, white wall painted, and triple bulb lantern pole lamp installed.
Also hoping to get central AC unit moved to pad installed for it behind grill and generator closer to fence.

Another older pic before wall was painted and fence stained. used to show where gas line will run .

Pic from this year. Crimson maple tree's leaves haven't come in yet, which are large red leaves. Neither have rosebushes and other plants.
End fronds of the central willow will turn a chamagne/pink-tan later. Tiger Lillies in rear right corner, rose bush and other flowers across.
The two up arrows on the left and right are for the fire bowl stone-look columns. The middle one undermines the patio to the fire bowl table.

Pic before I added new mulch. I still need to remove those plain concrete pavers and add a few stepping stones, or do another paver pad walkthrough.