Management of Items Contaminated by Urine or Faeces

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Introduction

House-soiling and indoor marking can begin for a number of reasons but, in some cases it continues purely because the cat can detect the trace smell of urine or faeces. Removing these odours is essential to stop the problem.

Removing Urine or Faeces Contamination

The best way to remove odours from existing sites is as follows:

Make up 3 sprayer bottles, labelled 1, 2, and 3. They should be filled in accordance with the following instructions: 1: A solution of biological clothes washing powder or liquid in water (approximately 1 part of powder/liquid cleaner to 10 parts of water) 2: Plain water 3: Surgical spirit (clear surgical spirit, not coloured methylated spirit)

Paper kitchen towel is best to clean with because reusable cloths tend to spread the scent. The spray bottles and towel should be kept in a bucket to avoid leaving scent marks where they have been placed on the floor.

Each soiled site should be cleaned in the following way:

  • Use paper towel to remove any urine and faeces. Dispose of the towel.
  • Spray the area with bottle 1 and then wipe clean with paper towel. Dispose of the paper towel.
  • Spray with bottle 2, wipe clean and mop dry with paper towel. Dispose of the paper towel.
  • Spray with bottle 3, and allow to dry completely before allowing the cat into this area.

To prevent any inadvertent damage to surfaces, the cleaning method should be tested on a small and inconspicuous area of the carpet or fabric. Any curtains or furniture covers that can be removed should be washed according to the manufacturer’s instructions.

Scented products and those containing ammonia should not be used to clean up spray marks because they may intensify urine odours and leave an objectionable smell that encourages over-marking.

Frequency of cleaning:
Urine odours will continue to accumulate because one round of cleaning will never be enough to remove all of the odour. Each spot should therefore be cleaned several times each week, until it has not been soiled at all for at least 3 weeks. This will remove all odours and reduce the chance of further soiling if the cat has a relapse.

Protecting Property from Urine Damage

Wooden floors:
Any joints and junctions between flooring and skirting boards or fitted furniture (kitchen units) should be sealed with a silicone or an appropriate waterproof sealant to prevent urine from getting into cracks. The same applies to joints between panels of laminated flooring (urine ingress will cause panels to expand and pop up). Wooden floors should be pained with two or more coats of a heavy varnish or damp-sealant paint. If possible, the painted or varnished area should be extended to over-paint the sealant and thus create a complete barrier.

Concrete floors:
Concrete floor shoud be cleaned and allowed to dry. Any cracks should be sealed as for wooden floors above. Several coats of waterproofing paint should then be applied.

Vinyl floors:
Some vinyl floors are porous, especially if they are old, and may be sealed using specialist paints and coatings. Cracked vinyl flooring should be removed and replaced.

Tiled floors:
Glazed tiles are generally non-porous but grout between the tiles may absorb urine. Terracotta tiles are porous unless regularly sealed with a specialist coating. Specialist sealant on grout should be used. Scraping out old grout in heavily urine-contaminated areas and replacing it with new waterproof grout is recommended.

Carpets:
Before fitting new carpet, the flooring underneath should be cleaned and sealed as above. Applying a layer of heavy plastic sheeting beneath the carpet or underlay to prevent urine from seeping into the floor may be beneficial. Existing carpets can be protected by covering them with heavy plastic sheeting and then cleaning the carpet underneath at least 2-3 times weekly until no further urine odour persists.

Wooden furniture:
Where possible, appliction of two or more coats of varnish, especially under wooden feet of furniture, will stop urine absorption into wood grain. If this is not possible, regular applications of a heavy wax furniture polish is a good alternative.

Computers and electronic equipment:
Urine marking or soiling on electrical equipment is a serious health hazard: it can cause fires and electrical failures. Any soiled equipment should be disconnected from the electricity outlet and cleaned carefully in accordance with the manufacturer’s instructions and dried thoroughly. Any cooking equipment that is impossible to clean thoroughly (e.g. old toasters) should be disposed of, because these represent a health hazard. Equipment currently not in use can be protected by storing in in a cupboard or under plastic sheeting (remembering the need for some equipment to be properly ventilated).

Electrical outlets:
Urine entering a wall socket can cause a fire or shock hazard, so access to the location should be restricted. As an additional protection, outlets can be covered with cling-film or a large flap of polythene hanging down over the socket, taped to the wall above it or alternatively using child proof plug guards.

Altering Spraying Sites to Make Them Unattractive to the Cat

  • Placing small bowls of food close to the marking location and combining this with an increase in the overall number of feeding stations throughout the house
  • Using plastic or aluminium foil sheets to cover flooring around the spray site, as some cats will not tread on this
  • Positioning a scratching post in front of the site to provide an alternative method of marking