AdamD Posted October 30, 2020 Share Posted October 30, 2020 We've made the mistake of not clearing the grass cuttings away properly lately (lazy!) and as such they've been blown onto the patio, got wet and subsequently stained some of the jointing (not much, luckily, but enough to be an eye sore). The jointing compound we used was pavetuf (buff colour) https://www.pavetuf.co.uk/jointing-compound/ and I can't seem to shift the green grass stains which is really frustrating. Any ideas what solution/chemicals could do the job? Worst case scenario I will just add a bit more compound over the top to cover it (I have half a tub left over) but don't really want to resort to this every time it needs a clean. Advice appreciated! Link to comment Share on other sites More sharing options...
nod Posted October 30, 2020 Share Posted October 30, 2020 Algae-cide You will need a dry 24 hours Dilute 20-1 and spray on with a plant sprayer The rain will do the rest 7 days later 1 Link to comment Share on other sites More sharing options...
AdamD Posted October 30, 2020 Author Share Posted October 30, 2020 24 minutes ago, nod said: Algae-cide You will need a dry 24 hours Dilute 20-1 and spray on with a plant sprayer The rain will do the rest 7 days later Great, thanks. A dry 24 hours? Ha, may get it cleaned in the spring then! https://www.amazon.co.uk/Algaecides/b?node=4364580031 - any of this? Says it is for spas but presumably the same chemicals. Link to comment Share on other sites More sharing options...
Dave Jones Posted November 1, 2020 Share Posted November 1, 2020 sodium hypochlorite, brilliant stuff. Gets the slabs/blocks like brand new with no effort. Put on pretty strong first time and just leave it. https://www.ebay.co.uk/itm/Sodium-Hypochlorite-14-15-Patio-Cleaner-Swimming-Pool-Chlorine-10-Litres/293530139736?epid=11037962208&_trkparms=ispr%3D1&hash=item4457c27c58:g:r7cAAOSwRsJehe7e&amdata=enc%3AAQAFAAACcBaobrjLl8XobRIiIML1V4Imu%2Fn%2BzU5L90Z278x5ickkvjzWOStkxwnlDuxSI1PVVu8e5rlRA4HwQngsX5udberl6rRHs%2FMOJD89a35nRa2ilDubBNc9iASqP4F72mvHidM9vQ1Z9QMtIcU0mVQP24860dJKaXYXLXtz0RIzgKnX7jBBvFfVLHlxIhGmicbtM%2BAdWsFrEoMhWY2TTrrxJzInoZPOAgHSMvWmcPU0Hi6MVTWNnbzUsgXC1FKCqyRbeeOyZ4YeGeR8M7ItR%2Fn6Jwf09Fzll8dbfe7dlOOQPCI0cT8Rm3b4astrBVCPSVF0EQoNETEtT4bX4t20JbyI00OmvyZKEcQ23YrbPTVfIY1s7q8KEyKqpENP7ezld99QZGO0xwxa0PjqLuJfLZjkQxPs6p0IDI3V5gy%2FjQ97IpDuMhSS46D9%2BlbSe2wvaEixTR0h1S2e11sRco4pvicx5KM2aEmxl9VRfD90V%2BJFNg0C2bJyFBiR%2BNY8dWwilDp42ce9FMEnu%2B0gD7a0FwV0YobiEO88i0ZKit6EpfktrHxp5YXpT03vw%2BG5FuxJbarkoAOAQOcbEMmLKIbA5bYVT9WU0cNW1gkPUqqrjWKI8u%2BGxM56%2BmVfY9nN0U6XEw%2BwIXIFA6m7IwsoZvAVtb%2BP2KzfjZNTFKa1SrBlIC6PhDBBvPZmPNfQW1DbrL9ILqIJLDsI00b%2FTuxwhahwfG26%2Bspi0RwibHrWWPEojUiBnytz431rxp1KAO8zz4IQGatonNnel0vSbCtBJ5ejGPByxL1c3t47PfA8Vl8I9%2FmDuCk6Xiu5XkJhL07ANxOk2EfDUQ%3D%3D|cksum%3A29353013973641e3d213656a429db185ab70e2c2cacc|ampid%3APL_CLK|clp%3A2334524 2 Link to comment Share on other sites More sharing options...
AdamD Posted November 4, 2020 Author Share Posted November 4, 2020 On 01/11/2020 at 19:46, Dave Jones said: sodium hypochlorite, brilliant stuff. Gets the slabs/blocks like brand new with no effort. Put on pretty strong first time and just leave it. https://www.ebay.co.uk/itm/Sodium-Hypochlorite-14-15-Patio-Cleaner-Swimming-Pool-Chlorine-10-Litres/293530139736?epid=11037962208&_trkparms=ispr%3D1&hash=item4457c27c58:g:r7cAAOSwRsJehe7e&amdata=enc%3AAQAFAAACcBaobrjLl8XobRIiIML1V4Imu%2Fn%2BzU5L90Z278x5ickkvjzWOStkxwnlDuxSI1PVVu8e5rlRA4HwQngsX5udberl6rRHs%2FMOJD89a35nRa2ilDubBNc9iASqP4F72mvHidM9vQ1Z9QMtIcU0mVQP24860dJKaXYXLXtz0RIzgKnX7jBBvFfVLHlxIhGmicbtM%2BAdWsFrEoMhWY2TTrrxJzInoZPOAgHSMvWmcPU0Hi6MVTWNnbzUsgXC1FKCqyRbeeOyZ4YeGeR8M7ItR%2Fn6Jwf09Fzll8dbfe7dlOOQPCI0cT8Rm3b4astrBVCPSVF0EQoNETEtT4bX4t20JbyI00OmvyZKEcQ23YrbPTVfIY1s7q8KEyKqpENP7ezld99QZGO0xwxa0PjqLuJfLZjkQxPs6p0IDI3V5gy%2FjQ97IpDuMhSS46D9%2BlbSe2wvaEixTR0h1S2e11sRco4pvicx5KM2aEmxl9VRfD90V%2BJFNg0C2bJyFBiR%2BNY8dWwilDp42ce9FMEnu%2B0gD7a0FwV0YobiEO88i0ZKit6EpfktrHxp5YXpT03vw%2BG5FuxJbarkoAOAQOcbEMmLKIbA5bYVT9WU0cNW1gkPUqqrjWKI8u%2BGxM56%2BmVfY9nN0U6XEw%2BwIXIFA6m7IwsoZvAVtb%2BP2KzfjZNTFKa1SrBlIC6PhDBBvPZmPNfQW1DbrL9ILqIJLDsI00b%2FTuxwhahwfG26%2Bspi0RwibHrWWPEojUiBnytz431rxp1KAO8zz4IQGatonNnel0vSbCtBJ5ejGPByxL1c3t47PfA8Vl8I9%2FmDuCk6Xiu5XkJhL07ANxOk2EfDUQ%3D%3D|cksum%3A29353013973641e3d213656a429db185ab70e2c2cacc|ampid%3APL_CLK|clp%3A2334524 Thanks. Before reading your reply I went for 'Pro Kleen simply spray and walk away' but if it doesn't work I'll give the sodium hypochorite a go. It is very frustrating as across a 40sqm patio the jointing of only about 4-5sqm is affected. Looks horrible. Link to comment Share on other sites More sharing options...
CC45 Posted November 4, 2020 Share Posted November 4, 2020 local agricultural outlet will prob be the cheapest for Hypo - dairy farmers use it for cleaning pipes so should be in stock. 1 Link to comment Share on other sites More sharing options...
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