0000006938 00000 n Because some projects are time sensitive or partner contractors may be on a tight schedule for adjacent hardscape work, it’s useful to develop a relationship with an experienced soil expert before they’re needed. “Those soils can shrink and expand substantially depending on how much moisture is introduced into it.” Even if the pool contractor takes this issue into account, adjacent concrete work or other hardscape installation can still trigger big problems. Soil pH measures the acidity or alkalinity of a soil, with a pH below 7.0 indicating that the soil is acidic and a pH above 7.0 indicating alkaline conditions. As a part of our specialized practice in structural engineering for swimming pools, we are often asked to investigate all sorts of pool-related problems to determine the cause. may require dewatering wells during construction to lower water table A. Surprises during construction are never good. The author has observed many of these pools experiencing movements, cracking, etc. This “We think of the top four feet of earth as the active zone,” Cohen says.

Below that four-foot layer — in the inactive zone — the moisture level is usually more stable. h��V�o�6~�_�G 0000001114 00000 n x�b```a``� "Yl@ (��م M��u��f�o���G ��Al�h�v����R�^&�y���e��n`X$YR:R�CӄUg�Ld����8���S SY�q��,N���K&��������D��J.Ҿ���yw&�����������@ b��500X��B�@�1H,%���� �@؝@�����d`�;W�NdX���Q��f�dIg��J`L����P����˸��c ��x�;��@V2C�7C!��i�@�/H�1Ⱥuf|�d�0.��1�2�bb�`���0��B�^&�@� ��~g����}H3�g� �Y� endstream endobj 149 0 obj <> endobj 150 0 obj <> endobj 151 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageC/ImageI]/ExtGState<>>> endobj 152 0 obj <> endobj 153 0 obj <> endobj 154 0 obj [/ICCBased 159 0 R] endobj 155 0 obj [/Indexed 154 0 R 109 160 0 R] endobj 156 0 obj <> endobj 157 0 obj <>stream Many inground swimming pools are built in the Houston area. How to Test Soil PH With PH Test Strips. 0000002323 00000 n 0000002245 00000 n Over the years, we’ve learned many valuable lessons from these investigations, particularly on the topic of hillside pool construction and the construction of pools near descending slopes.

Typical 1-2% retaining wall deflection allows movement of wall backfill and subsequently the pool. [contact-form-7 id="1975" title="Media Kit Inquiry"] is the definitive trade publication for the swimming pool industry, committed exclusively to reporting vital market topics and practical tips to aid pool professionals in the day-to-day operation of their businesses. Because clay soil shrinks and swells with moisture — and because concrete used in the pool and hardscape may also expand and contract due to changes in temperature — Cohen says, “It will create pressure on the bond beam if not isolated properly.”Visual inspections conducted by a pool contractor may not always be enough to reveal the soil details necessary to ensure their installations are a success. The pool will likely not float evenly and crack and require total replacementConstruct pool with rock pack and hydrostatic pressure relief valve and/or sub-drainage system.

All building construction requires an assessment of the below ground level conditions to determine the size and type of footings required. “If your pool shell is six feet deep, the bottom of the shell is anchored in relatively consistent soil,” Cohen says. Soil analysis helps avoid pool damage, failures. There are two key words we use to describe the soil conditions we want under the poolb) Install caissons of piles if required due to depth necessarya. Soil Boring Test: Finding Out What’s Underground This would be one of the most common variations and is caused by wet ground, heavy rains, excess water and poor soil conditions. A fairly accurate and simple method of testing pH that is inexpensive is reported by the American Rose Society as follows: Take a soil sample and add at least the same amount of relatively neutral (pH 7.0) deionized water. One is the installation of pools in expansive clay soil, which is prone to absorbing water, swelling as it does. �h��(�ѱ9�E-5��t��� Moisture levels in the active zone fluctuate considerably during rainy periods, droughts and other weather events. What are the site soil conditions and important characteristics of the soil . Add half a cup of water, and mix. 0000002197 00000 n We can conduct soil testing and geotechnical investigation for your in-ground swimming pool. You don't have to spend money to improve your soil. Remember that good pH is only one aspect of healthy soil. 0000001534 00000 n Start typing to see results or hit ESC to close You can get Expansive soils generally are made up of absorptive clay-like materials that swell or shrink, depending on moisture content. 0000003854 00000 n Erin Huffstetler is a writer with experience writing about easy ways to save money at home.Compassionate Eye Foundation / Steven Errico / Getty Images If your soil doesn't react to either test… A fairly accurate and simple method of testing pH that is inexpensive is reported by the American Rose Society as follows: Take a soil sample and add at least the same amount of relatively neutral (pH 7.0) deionized water. Pool operators need to be confident that the disinfectant is correctly dosed and controlled, for both the health and comfort of the bathers. Webb Geo Struct specialises in Geotechnical Engineering and Soil Testing Melbourne for residential and small commercial projects. 0000000676 00000 n

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