Trans-Fi Terminator Tonearm: 2019 Update

I updated my air smoothing tank and its picture but this didn't post well and is not editable so Further explanation is required and a new picture.
I replaced the stock 5L tank with a chain saw plastic fuel can.
This has two compartments, 3L for two stroke Oil and 5L for petrol.
I fed the smaller tank from the pump and put Polystyrene balls in the tank, connected that to the larger tank and added an in-line filter after it all.
The idea of the Polystyrene balls is to create multiple paths of different lengths, with different arrival times. This would hopefully break up the pulses or at least increase the frequency of the pulses. It does seem to smooth the supply and with a quite compact set up.

@qwin Thanks for the update. The polystyrene balls will help in smoothing out the pulses. Another trick is extra long connecting tube, 10m or more. It can be 'coilied' and that helps too. Do you hear better sound quality? I certainly hope so!

I add a photo of my filtration regiment housed in a unused bathroom next to the listening room and doubles as a record cleaning area. In addition to the original 5L can ( in the fore ground ) which I kept for nostogic reason, the rest are 20L plastic tanks and two 20L stainless steel cans in the back (not shown). There is a total of 150L of filtration connected to a Hilbo 40 knockoff pump. It is not as pretty as I would like it at the moment as tanks are added incrementally. But the idea is to replace all the plastic tanks with SS ones.

Yes, there is a good improvement in sound quality over the stock set up.
Like many people, I don’t have room for a large array of tanks, which is why I made the point, that this solution is compact, so more practical for these users. It’s an alternative solution which opens up some possibilities for folks like me.
My air supply is located in an unused space, behind a door that is always left open, so out of sight, but easy to get at/maintain. Being in a different room, through a brick wall, means I have zero pump noise in my listening room. I may try some different types of solid beads instead of the Polystyrene, to see if they work better, maybe ceramic aquarium filter beads or even dried peas?
Going for a longer flexible hose, usually means a pressure drop/loss so a more powerful pump may be required. Having said that, mine operates in the first third of its adjustment knobs rotation, so I can give it a try.

@qwin I am happy that there is improvement in SQ. The pump I used before, Eheim 400, is similar to yours in power output, I believe. I recall going up to maybe 60L so there should be plenty of reserve in the pump to experiment.

on a different note, I visited a local audio store over the weekend operated by a hardcore two channel vinyl proprietor. He carries interesting brands mostly from Eastern Europe, J. Sikora, Reed, Holbo…etc. He showed me a Polish TT with an integrated LT arm by Pre Audio. The arm had an even shorter wand than the Terminator and an integrated pump located underneath the arm. In terms of design, it solved many of the problems we are dealing with the Terminator, dressing the phono leads, getting the arm out of the way to remove records,….etc and not very expensive. I was excited to see another humble LT arm. Didn’t get to hear it play though. 

Interesting about the LT arm, I will try and find details of that.
I'm still experimenting with the filter material in the 3L chamber of my twin tank.
I emptied out the small Polystyrene balls, which are very light and even static off your arm moves them around. I put 1.5L of ceramic baking beads in the bottom of the tank. The kind used for blind baking, about 10/11mm diameter. This will be topped off with 1.5L of 6mm "Airsoft" BB gun plastic pellets. The ceramic beads are slightly irregular and form a course filter, the BB pellets are perfect polished spheres. The smaller diameter of the pellets and precise spherical form will create much smaller passage ways between them.

I have an intermittent problem with my arm.
Occasionally in use, when I come to move the wand back at the end of a record, the slider has great resistance, almost as though it is being sucked down on to the manifold. I'm wondering if there is some form of vacuum effect, where the air is exiting from the holes either side of the slider and there is a venturi effect from the holes under the slider sucking it down. It becomes so stiff, it is easier to move it with the pump off and no air at all. Just repositioning the slider or lifting one end of it while the air is on, seems to rectify this for a while.
I was wondering if anyone else had come across this issue?