The pool surface is a plaster surface. It appears to be approximately 15 to 25 years old and in relatively fair condition.
Because this is a salt pool it looks like it has likely been a salt pool for a period of its life. I would not initially anticipate it was its entire life because the surface actually does not look terrible as it would if it had been for its entire life but then again maybe it has been maintained well.
Still what we are seeing is a surface scarred with salt which inevitably causes high chlorine levels over long periods of time. We see scarring on the return on the top shelf. That is what the discoloring is from likely due to high levels of chlorine being emitted out causing excess wear in these areas and pits.
I am seeing pits pretty much throughout the entire pool. There are these micro pits about the size of 2 mm x 2 mm throughout the entire pool with no specific pattern but they are obvious as they can be seen. These lighter colored areas would appear to be stains but they are actually pits in mostly the shallow end and I am seeing much of these pits filling up with algae commonly referred to as black algae or dark green algae. This is common in older surface pools with a lot of organic matter around it present.
It also feels as if the algae is present on the entire surface which is also common with salt pools as they typically will over chlorinate but still allow organic matter to grow.
I would give this surface a four out of 10 which is expected after 15 plus years of salt exposure and high chlorine levels. I do not feel the chlorine levels have been too high but again with the science present it is showing that we are likely on the last 20 to 40 percent of its lifecycle.
This plaster can typically last up to 30 years and again I would put the surface between 15 to 20 years old approximately indicating it may have another 10 to 15 years of additional max life remaining.

Note that the surface will likely cost between 10 - 14K+ to re plaster when due.

Cost estimates:
• Re-plaster: $10,000 - $14,000+

Also note there appears to be a blemish repair on the west wall, white tile added ? Un sure what to think about this.

The pool concrete decking appears that most of the settling has occurred in the northeast upper deck area where it appears we have about a half an inch of movement that has been filled with mastic and some of the rock may have been ground to cut down sharp edges which is ideal. This may need to be done again in the next 3 to 7 years. Someone will likely charge around 1 to 2000 to do it.
We are starting to see a gap in between the northeast skimmer and the rock which could also potentially compromise the skimmer in general. I also see some gaps present and mortar missing in the raised wall area outside of the pool. Walking around the pool there are other areas where the concrete has settled on the northeast southmost corner of the deep end on the concrete and again we do see some concrete movement in one way shape or form around most of the pool however slight it may be.
Next the stone coping. This natural stone around the pool appears to be in fair condition overall but there are mortar joints that are becoming more and more exposed with a gap forming in many locations around the pool. This is normal with age and we will likely be another 3 to 7 years before this will also need to be re-mortared at a cost of around one to $2000. The only area that seems to be of any concern now may be the eastmost or southeast most raised wall. There are a lot of movement or mortar joints showing movement and those may need to be done in the next 3 to 5 years.
The waterline tile around the pool appears to be in good shape overall for its age. The northeast skimmer is in fair condition. The northeast skimmer first and then the west skimmer next. We need to have their skimmer to tile connections re-mortared in the next 3 to 7 years likely less than $500 each and there are two skimmers. Otherwise the waterline tile all seems to be overall in fair condition.
Cost estimates:
• Concrete decking repair in northeast area: $1,000 to $2,000 (likely in next 3 to 7 years)
• Coping stone re-mortaring: $1,000 to $2,000 (likely in next 3 to 7 years)
• Raised wall mortar work: $1,000 to $2,000 (east/southeast area in 3-5 years)
• Skimmer to tile connections re-mortaring: less than $500 each (two skimmers, likely in next 3 to 7 years)

The pool water quality is damaged. The pH and alkalinity are ideal. The total chlorine is slightly high while the free chlorine is ideal. The calcium hardness level is ideal but the CYA cyanuric acid is low. It should be raised.
The main worry in this pool is the organic algae present throughout. It is seen mostly in the shallow ends of the pool especially in the shaded areas and in the steps. This organic matter will have to be treated and removed. It will likely require some phosphate treatments enzyme treatments and filter cleanings along with algicide.
I would estimate likely around $300-$400 in treatments and service to attempt to remove the organic matter. It may require 2 to 4 treatments to fully remove.
Also note that judging by the water quality it does appear that there may be water loss present especially because the auto fill was running continuously during the inspection and the CYA levels are very low which usually is a chemical that will stay in the water forever. This helps determine that this is either new water which I do not feel it is meaning drained and refilled or there may be water loss present which is likely judging by the science present.
Cost estimates:
• Raising CYA: approximately $50
• Treatments and service for organic matter removal: $300-$400

Next step is the skimmer and main drain section. There are two skimmers in this pool. They both appear to be original and they are approximately 22 years old. They both appear to be due to have their minor parts updated which will include a new float, O-ring, weir door, weighted basket, and new skimmer lids times two to update all these parts. Expect the cost of around $600 including parts and labor maybe even closer to 700.
Next the main drains. There are two main drain covers in the bottom of the deep end of the pool and then two on the side located in the middle and shallow end. All four of these covers are due to be updated for safety at around $100 each cover so for a total of four covers. Note at time of re-plaster these can be updated to low profile channel drains at approximately $500 each location so a total of 1000 at time of next re-plaster. This is not required now. The updated main drain covers are due now.
Cost estimates:
• Skimmer parts update including float O-ring weir door weighted basket and lids for both: $600 to $700
• Main drain cover updates for all four covers: $100 each for a total of $400
• Optional low profile channel drains at time of re-plaster: $500 each location for a total of $1,000

The bottom cleaner present is in relatively fair to poor condition. Overall it is due to have a few parts updated which will include likely a new hose, new tail, and new tires. All of this would be less than $200 approximately.
Note an entire new cleaner unit is around $650 while this is likely not due now. It will likely be due in the next 1 to 3 years.
Cost estimates:
• Bottom cleaner parts update hose tail and tires: less than $200
• New bottom cleaner unit: around $650 (likely due in next 1 to 3 years)

The auto fill is up next. The auto fill is located by the southwest skimmer. The auto fill canister is in fair condition.
Overall the only issue is that the auto fill itself seems to be running continuously and when everything is shut off it runs even more or harder. This could be that the float itself is due to be serviced and or readjusted and leveled correctly or it could be because water loss is present.
Service to this fill is needed to confirm if it is fill related or water loss related.
Cost estimates:
• Service call to this auto fill replace the float and retest: closer to $250

Next step is the filter. The filter is original. It is leaking from what appears to be its tank O-ring. It also may be leaking at its union. O-rings are difficult to tell but recommend service at around 150 plus. Parts will be less than 200.
Also add a liquid filled pressure gauge as this one is unreadable and at that time investigate if the elements inside are due for updating and or replacement which would be closer to $600-$700 for that as well.
Cost estimates:
• Filter service for leaks: around $150 plus
• Parts: less than $200
• Liquid filled pressure gauge and elements investigation/replacement: $600-$700

Next step is the filter pump. The filter pump appears to be in good shape. Overall it is going to need minor service to the pump O-ring and or basket less than $100. I do see significant air in the pump basket which may just be related to the leaking suction side valve which is more likely but still recommend minor service to confirm less than $100 here. Note that the bonding wire is connected.
Cost estimates:
• Minor service to pump O-ring and or basket: less than $100

The booster pump is next. It is in working condition without any issue present.
I would eventually recommend updating the hoses to hard plumbing for less than $500 but that is not required. It was just recommended.
Otherwise there are no issues with this pump now.
Cost estimates:
• Updating hoses to hard plumbing: less than $500 (not required, future recommendation)

Next step is the board and timer. The board and timer is a new EasyTouch PL4 control system added to an existing subpanel. The subpanel is below the EasyTouch. The subpanel is in relatively fair condition.
The breakers include a variable speed Siemens breaker which is great. I would like to also see a GFCI on the pool lights as well as a GFCI on the outlet. Those updates would likely run around $300-$500 along with electrician labor at around $300 so $800 total worst case.
As it stands right now it does appear that all items are working. I was not able to get the pool light to function even after resetting all the breakers for it which is understandable because the pool light appears to be an older light and it likely has condensation inside the light lens indicating that the light can is due to be updated. Still for safety recommend updating its breaker to GFCI.
Cost estimates:
• GFCI updates for pool lights and outlet parts: $300-$500
• Electrician labor: around $300
• Total worst case: $800

Recommend removing this cell ($100) until the cell is replaced ($1k+). Otherwise salt is not working.

This pad does appear that all of this plumbing is original and is due to be serviced which will include new union o-rings, three-way valves, and check valves. This would be approximately less than $1000 updated which will include repainting and re-labeling and covering from the sun using UV mesh.
Also note upon arrival I did find that the waterfall was running every time the pool was running. This may be a potential source of water loss as waterfalls sometimes will leak behind the wall where they are located there.
Cost estimates:
• Plumbing service including new union o-rings, three-way valves, check valves, repainting, re-labeling, and UV mesh covering: less than $1,000