The pool surface is older and deteriorating, with signs of plaster dust indicating the final stage of wear, resulting in a very rough texture and breakthrough to the gunite in several locations imminently if not already. Anticipate the surface lasting no more than another 1 to 6 months. Resurfacing cost would likely range between $7000 and $10000. Total estimate: $7000 to $10000.

Three areas of concrete decking show lifting or compromise. On the east side near the skimmer, the concrete is deteriorating and will likely need redoing soon to prevent injury, involving a single slab that can be opened and serviced, potentially including skimmer attention or a new skimmer based on severity, estimated at $3000 to $5000. On the west side, one or two slabs are lifting possibly due to nearby redwood tree roots, requiring resetting; if addressed concurrently with the skimmer side, it would add less than $5000. On the south side, there is additional lifting concrete, suggesting the issues may be less related to trees and more to natural settling around the pool. These could be mitigated with mastic and service instead, as they do not impact the pool shell, but attention is advisable for aesthetics and to avoid trip hazards. Also note that in the northeast section there’s some additional concrete slab movement and if this area is compromised as well, another $1000 to $2000 extra to remedy. Total estimate: $3000 to $12000 depending on scope and timing.

Water quality indicates no chlorine has been present for quite some time, as evidenced by algae growth especially on the tile line and some walls. Recommend a treatment to rebalance the water and eliminate organics, including adding CYA and chlorine. Total estimate: under $375.

The skimmer shows some chlorine abuse oddly concentrated on the top half rather than the lower half. The weir door is stuck and due for updating, along with the float soon, at a cost of around $200. Visibility down the skimmer throat is limited due to excessively high water levels, but observable portions reveal roots poking through the sides, indicating the mortar around the throat needs updating at approximately $500. Recommend a closer inspection once the water level is appropriately lowered. Total estimate: $700.

The main drain cover is not compliant and will need to be updated for safety ($88+).

The bottom cleaner is a Polaris 3900 in fair working condition. Tires are due for updating soon, tail is nearing replacement status, and the hose is in good shape overall but may need a swivel added potentially, along with possibly a slight trim, and the wall adapter is likely due for updates ($105).

It does not appear that there is an automatic filler, and the manual fill shut off, appears to be on and not being used.

The pool light is older with water present inside the lens, posing a safety risk and indicating potential electrical hazards. The light niche is also older, potentially requiring a specialty replacement light. Recommend updating to a new white LED Pentair high-quality light for safety, costing approximately $950, though it may not fit the niche, so measuring is advised first. Installation would be around $350. Total estimate: $1300.

The filter is an S8M 500 model, a 500 square-foot unit that is very dirty, with pressure reading over 25 psi, likely due to a faulty gauge indicating even higher actual pressure. Recommend updating the pressure gauge, along with replacing the elements at around $850 plus $150 for service, and updating the tank O-ring for $50. Given the large amount of debris and foliage from overhanging trees, suggest removing this filter entirely and installing a sand filter at $1200 to $3400 installed, depending on model and options. Total estimate: $1050 for repairs or $1200 to $3400 for replacement.

The filter pump is working but due for pump lid O-ring service at $50. It is currently being abused due to a very dirty filter causing the motor to run very hot, which will eventually cause the motor to expire prematurely if continued, costing more than $1200 to install a new variable speed motor. It appears the shaft seal or seal plate is leaking, as evidenced by significant water underneath the shaft seal area, requiring repairs at around $750 or more including service. The pump is in relatively fair condition, older than 15 years, with no other major issues observed. Total estimate: $50 for immediate O-ring service or $800+ including shaft seal repairs, or over $1200 for motor replacement if overheating persists.

The booster pump appears relatively new and in good shape, but shows potential leaking from the shaft seal, with moisture and wetness observed underneath the seal location and significant wetness under the pump itself. Confirmation is challenging due to extensive water loss on the pad from other issues, complicating precise identification to this pump. If verified, repair would cost around $450. Total estimate: $450.

The timer is working, but the breakers are older and due for updating for safety, with the GFI no longer functioning. Recommend $350 in breakers, including a variable speed breaker by Siemens and GFCIs for the pool lights and receptacles. An electrician will install for about $300, and also recommend adding a $300 water bond. Total estimate: $650 to $950.

The valving is all leaking and older, requiring replacement as soon as possible. There are four two-way valves, two of which appear solar-related, contributing to significant water loss. All should be updated, along with some plumbing and older check valves, to improve efficiency. Total estimate: $2000 to $3000 including parts and labor.