i had a bag that says 1 cat 1 bag = 35 days
I would think that could well be true in tests, especially for one cat. We use Beautycat and Mayfield Woodbase which we get from Batleys. With wood litter (the brands we use anyway) there should be no smell of urine, if there is then we always advise a trip to the vets for the little one. When I home a cat I always pick up the tray and put it under my nose to show the prospective adopter that there is no smell (I purposely make sure there are some weesee in the tray if I know someone is coming to adopt) and then offer it to them to smell, the pic of some of their faces is a delight. Over the years I must have tried every cat litter known to man and I can honestly say that I know of no other litter that I cannot smell urine and I cannot stand it.
I never put fresh litter on old litter, all one needs to do is place a thin layer in the bottom of the tray, remove the dumps as soon as I
smell notice them. When the litter turns to dust I just take it all out, wash the tray and start again.
It costs me £20 for 2 bags which is a £1 a bag cheaper than my previous Petshop, who said they couldn't get it any more.
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That is about right for shop prices, a few weeks ago and for a few weeks there was a shortage of wood litter, Our wholesalers would only allow us 5 bags at a time, not good when about 4 fosterer's order 30 bags at a time, thankfully the situation is now back to normal.