Wool Loop Pile After High-pH Spotting

The carpet is a tight wool loop pile, stretch-in over a felt pad, with a synthetic woven secondary backing. Each feature changes the risk profile:

• Wool: it is sensitive to high pH, strong oxidizers, and prolonged moisture. Alkaline residue can leave it stiff, yellowed, or rough, and agitation can felt the fiber. I would use a wool-approved acid detergent, low pressure, low heat, and a thorough acid rinse.
• Tight loop pile: loops can snag, burst, or fuzz when brushed aggressively. I would use a soft grooming tool or CRB with light pressure, not a stiff brush, and avoid high-pressure wand passes that distort the loops.
• Felt pad: it holds water and can transfer moisture back into the carpet. I would control solution volume and dry quickly with air movers and dehumidification.
• Synthetic secondary backing: it is less prone to cellulosic browning than jute, but the latex adhesive and seams still need protection from overwetting.
• High humidity and rain: drying will be slow, increasing the risk of odor, delamination, and tip bloom. That supports a low-moisture method or a rescheduled date rather than a heavy steam clean.

The owner's request for "deep steam" conflicts with the fiber and weather conditions. I would explain that controlled moisture, not heat and volume, is what protects the wool.

The brown color is consistent with soil removal, but the faint pink tint is a warning, not a result to ignore. It could be suspended red wine residue, a dye from the carpet, or a color transferred from the spotting chemical. I would stop and isolate a hidden test area before any general cleaning.

Next steps:

1. Re-test with the same wool detergent on an inconspicuous area and place the white towel over the pile; check whether the tint appears without any wine present.
2. Check colorfastness with a damp white towel in several colors and note whether the tint matches the carpet or the spill.
3. Test the wine spots separately with a reducing agent or tannin spotter only after a colorfastness test; never combine oxidizers and reducers.
4. If dye continues to transfer, do not wet-clean the affected area. Use a dry or low-moisture method, or refer the dye-bleed risk to the owner in writing.

The pink tint might also be diluted wine, but a technician cannot assume that on a customer's carpet. The safe decision is to verify before increasing moisture, heat, or chemical strength. I would document the test and explain that dye transfer is a pre-existing fiber or dye condition, not a cleaning defect.

Plan: Dry-vacuum with a HEPA vacuum and detail the entry edges. Pre-spray in small sections with a wool-approved acid detergent at the recommended dilution, allow a short dwell, and agitate lightly with a soft brush or CRB. Extract with low pressure and an acid rinse, using multiple dry passes. For the wine and coffee spots, test first, then use a tannin or acid spotter; if a reducing agent is needed, apply it sparingly and rinse thoroughly. Do not use the pH 11 all-purpose cleaner again.

Drying: Because humidity is 70% and rain is forecast, I would use air movers and a dehumidifier, possibly close the space to outside damp air, and verify moisture before reopening. If rapid drying is not achievable, I would recommend a low-moisture encapsulation or dry-compound method for the open floor and treat spots separately.

Appearance: I would tell the owner that burst loops, fuzzed tips, and tip bloom are mechanical damage from the stiff brush and high-pH cleaning; cleaning can improve soil and hand, but it cannot restore broken loops or make an eight-year-old wool carpet look new. I would offer a carpet repair referral for the burst loops. Setting that expectation before the event avoids a dispute over permanent damage.